Radiation Therapy 1992-2001

ESC 2001 Meeting Coverage

TCTMD - Slide Sets

TCTMD - Debates & Controversies Slide Sets

Cardiovascular Radiation Therapy V And Restenosis Forum - Slide Sets

AHA 2001 Meeting Coverage

TCTMD - Euro-PCR Slide Sets

CV Channnel - Cyberconference
Brachytherapy : A luxury ? A passing trend ? A necessity ?
Consult this exciting face to face between Dr Ron Waksman, Washington DC and Dr William Wijns, Aalst Belgium moderated by Dr Max Amor, Essey Les Nancy, France.
Click here to consult archive

TCT 2001 Symposia
Cellular Mechanisms of Radiation Effect Against Restenosis V. Verin  
Comparative Angiographic Analysis of Gamma and Beta Radiation: Focus on Efficacy, Impact of Vessel Size, Lesion Length, and Failure Modes A. J. Lansky  
Does Debulking In-Stent Restenosis Have a Role Prior to Brachytherapy? START Analysis T. Bass  
Efficacy of Brachytherapy in High Risk In-Stent Restenosis Subgroups P. S. Teirstein  
European Surveillance REgistry with the NOvoste Beta-Cath System P. Urban  
Experimental Results of a New High-Energy, Long Half-Life Beta Source (144Ce/Pr) V. Verin  
Human Experience With Re 188 Liquid-Filled Balloon Brachytherapy J. Weinberger  
Late Stent Thrombosis - The Problem, The Solutions P. S. Teirstein  
Randomized Trials of Endovascular Brachytherapy After Femoral-Popliteal Interventions e. minar  
Safety and Efficacy of a 188re- MAG3 Liquid Filled Balloon System For Diffuse In-stent Restenosis (R4 Trial) S. J. Park  
The RDX BETTER & BRITE Studies: Clinical and Angiographic Efficacy of a Balloon Encapsulated 32P Foil for In-Stent Restenosis M. Buchbinder  
The RDX BETTER Experience: Results in De Novo Lesions W. Wijns  
The Radioactive Stent: Hot Ends, Cold Ends...Dead End? C. Hehrlein  
The Schneider Dose Ranging Study - Radiotherapy Can Be Effective in De Novo Lesions V. Verin  
There is no Edge Effect! As for Geographic Miss... A. J. Lansky  

New Frontiers in Interventional Cardiology
Intravascular Radiation to Prevent Restenosis
Paul S. Teirstein and Richard E. Kuntz
Circulation 2001;104 2620-2626
http://circ.ahajournals.org/cgi/content/full/104/21/2620

Localized intracoronary gamma-radiation therapy to inhibit the recurrence of restenosis after stenting
Leon MB, et al.
N Engl J Med 2001;344:250-6.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=11172151 

Endoluminal beta-radiation therapy for the prevention of coronary restenosis after balloon angioplasty. The Dose-Finding Study Group
Verin V, et al.
N Engl J Med 2001;344:243-9
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11172150
Intracoronary beta radiation therapy produces a significant dose-dependent decrease in the rate of restenosis after angioplasty. An 18-Gy dose not only prevents the renarrowing of the lumen typically observed after successful balloon angioplasty, but actually induces luminal enlargement

Following the publication of important Beta and Gamma Radiation articles in the New England Journal of Medicine in 2001, TCTMD has assembled expert commentary and opinions:

Comparative Efficacy of {gamma}-Irradiation for Treatment of In-Stent Restenosis in Saphenous Vein Graft Versus Native Coronary Artery In-Stent Restenosis: An Intravascular Ultrasound Study
Castagna MT , et al
Circulation 2001;104 3020-3022
http://circ.ahajournals.org/cgi/content/abstract/104/25/3020 

Serial Intravascular Ultrasound Analysis of the Impact of Lesion Length on the Efficacy of Intracoronary gamma-Irradiation for Preventing Recurrent In-Stent Restenosis
Ahmed JM, et al.
Circulation 2001;103:188-191
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11208674
Brachytherapy may be less effective in longer ISR lesions because of the greater variability and longer source-to-target distances in diffuse ISR

Serial intravascular ultrasound assessment of the efficacy of intracoronary gamma-radiation therapy for preventing recurrence in very long, diffuse, in-stent restenosis lesions
Ahmed JM, et al.
Circulation 2001;104:856-9
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11514368
Serial IVUS analysis shows that gamma-irradiation reduces recurrent in-stent neointimal hyperplasia in long, diffuse ISR lesions; however, it is even more effective when given at a higher dose.

Serial intravascular ultrasound analysis of edge recurrence after intracoronary gamma radiation treatment of native artery in-stent restenosis lesions
Ahmed JM, et al.
Am J Cardiol 2001;87:1145-9
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11356387
Edge recurrence after (192)Ir treatment of in-stent restenosis is the result of neointimal hyperplasia (part of generalized treatment failure) and the absence of radiation-induced positive remodeling.

<Review>
Intravascular ultrasound assessment of the mechanisms and results of brachytherapy
Mintz GS, et al.
Circulation 2001;104:1320-5
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11551886

Edge stenosis and geographical miss following intracoronary gamma radiation therapy for in-stent restenosis
Kim HS, et al.
J Am Coll Cardiol 2001;37:1026-30.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=11263603 

"Black hole": echolucent restenotic tissue after brachytherapy
Castagna MT, et al.
Circulation 2001;103:778
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11156893

Images in Cardiovascular Medicine
Edge stenosis after intracoronary radiotherapy : angiographic, intravascular, and histological findings
Kim HS, et al.
Circulation 2001;103:2219-20
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11331266

Extent and distribution of in-stent intimal hyperplasia and edge effect in a non-radiation stent population
Weissman NJ, et al.
Am J Cardiol 2001;88:248-52
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11472702
At 6 months, intimal hyperplasia occupied 29.3 +/- 16.2% of the stent volume on average. Lumen loss within 2 mm of the stent edge was due primarily to intimal proliferation. Beyond 2 mm, negative remodeling contributed more to lumen loss.

Brachytherapy for in-stent restenosis through the internal mammary artery
Kobayashi Y, et al.
Catheter Cardiovasc Interv 2001;53:530-4
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11515008 

Usefulness of intracoronary brachytherapy for in-stent restenosis with a 188Re liquid-filled balloon
Schuhlen H, et al.
Am J Cardiol 2001;87:463-6, A7
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11179537
The objective of this randomized pilot trial with 21 patients was to evaluate the effectiveness of a rhenium-188 liquid-filled balloon system to prevent recurrent restenosis after percutaneous transluminal coronary angioplasty for in-stent restenosis. A significant benefit from brachytherapy was seen at 6-month repeat angiography, as well as during the clinical follow-up of 12 months.

Late acute thrombosis after coronary brachytherapy: when is the risk over?
Liistro F || Colombo A
Catheter Cardiovasc Interv 2001;54:216-8
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11590688 

Prolonged antiplatelet therapy to prevent late thrombosis after intracoronary gamma-radiation in patients with in-stent restenosis: Washington Radiation for In-Stent Restenosis Trial plus 6 months of clopidogrel (WRIST PLUS)
Waksman R, et al.
Circulation 2001;103:2332-5
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11352879 

Two-year follow-up after beta and gamma intracoronary radiation therapy for patients with diffuse in-stent restenosis
Waksman R, et al.
Am J Cardiol 2001;88:425-8
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11545769 

Geographical miss during catheter-based intracoronary beta-radiation: incidence and implications in the BRIE study. Beta-Radiation In Europe
Sianos G, et al.
J Am Coll Cardiol 2001;38:415-20
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11499732 

Intracoronary beta-Radiation Exacerbates Long-Term Neointima Formation in Balloon-Injured Pig Coronary Arteries
Coussement PK, et al.
Circulation 2001;104:2459-64
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11705825 

CME Cybersession
New directions in brachytherapy
http://cme.cybersessions.org/dukeu-port19jul00/index.html
July 19, 2000
Drs James Zidar (chair), Ron Waksman, and Raoul Bonan discuss the history of treatments for restenosis and the evolving use of brachytherapy for the treatment of in-stent restenosis.

Review 
Catheter-based Endovascular Radiation Therapy Devices
  by Nadir M Ali et al
  Vascular Radiotherapy Monitor © 2000
  Click here to view the full article
Comparison of the main technical features as well as advantages and disadvantages of intravascular radiotherapy systems used in clinical studies

Review 
Catheter-based Coronary Intravascular Brachytherapy Trials
  by Prabhakar Tripuraneni
  Vascular Radiotherapy Monitor © 2000
  Click here to view the full article
Excellent overview of the clinical trials with gamma and beta intravascular radiotherapy systems. Both have been shown to profoundly reduce recurrence of restenosis in patients with in-stent restenosis

PREVENT Trial - Inhibition of restenosis with beta-emitting radiotherapy: Report of the Proliferation Reduction with Vascular Energy Trial
  Raizner AE et al
  Circulation 2000;102:951-8
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0010961957
Beta-radiotherapy with a centered (32)P source was highly effective in inhibiting restenosis at the target site after stent or balloon angioplasty. Edge narrowing and late thrombotic events observed

BETA WRIST Trial - Intracoronary beta-radiation therapy inhibits recurrence of in-stent restenosis
  Waksman R et al.
  Circulation 2000;101:1895-8
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0010779453
In this registry, beta-radiation with a 90-yttrium source used as adjunct therapy for patients with ISR resulted in a lower-than-expected rate of angiographic and clinical restenosis. Click here to view the comment from TCTMD.com  

Dose-Finding Study - Endoluminal Beta-Radiation Therapy for the Prevention of Coronary Restenosis after Balloon Angioplasty 
  Verin V et al
  N Engl J Med 2001;344:243
  http://www.nejm.org/content/2001/0344/0004/0243.asp
Intracoronary beta-radiation therapy produces a significant dose-dependent decrease in the rate of restenosis after angioplasty. An 18-Gy dose not only prevents the renarrowing of the lumen typically observed after successful balloon angioplasty, but actually induces luminal enlargement

GAMMA-1 Trial - Localized Intracoronary Gamma-Radiation Therapy to Inhibit the Recurrence of Restenosis after Stenting 
  Leon MB et al 
  N Engl J Med 2001;344:250
  http://www.nejm.org/content/2001/0344/0004/0250.asp
Intracoronary irradiation with iridium-192 resulted in lower rates of clinical and angiographic restenosis, although it was also associated with a higher rate of late thrombosis, resulting in an increased risk of myocardial infarction. If the problem of late thrombosis within the stent can be overcome, intracoronary irradiation with iridium-192 may become a useful approach to the treatment of in-stent restenosis

Editorial
Intracoronary Radiotherapy for Restenosis  
  Sheppard R and Eisenberg MJ  
  N Engl J Med 2001;344:295
  http://www.nejm.org/content/2001/0344/0004/0295.asp
Intracoronary radiotherapy is a new, exciting technology that is still in its infancy. The recent FDA approval of two devices for intracoronary radiotherapy should not be interpreted as carte blanche for the indiscriminate application of the technique. The FDA approval will permit to perform additional trials with larger numbers of patients, in different populations of patients, and with long-term follow-up. These trials will allow to assess whether the clinical benefits of intracoronary radiotherapy outweigh its risks. Until this question is answered, physicians should remain cautious in their use of intracoronary radiotherapy for the prevention and treatment of restenosis

Editorial
FDA Approval of Coronary-Artery Brachytherapy  
  Sapirstein W Zuckerman B and Dillard J 
  N Engl J Med 2001;344:297
  http://www.nejm.org/content/2001/0344/0004/0297.asp
Many questions concerning the safety of ionizing energy for the treatment of vascular lesions remain unanswered. Irradiation of blood vessels has previously been implicated in the formation of aneurysms. Mitogenic stimulation by low-level radiation that penetrates beyond the targeted treatment areas raises the specter of delayed oncogenesis in neighboring soft tissue and has been implicated in the constriction of vessels at the margins of irradiated stents -- the so-called "candy wrapper" or "edge" effect. These issues must be resolved with carefully crafted clinical trials, the results of which could justify the evidence-based expansion of indications for a promising therapy for coronary and other vascular disease. Nevertheless, at this time, brachytherapy appears to provide a valuable addition to the armamentarium of the interventional cardiologist.

Late-Breaking Clinical Trial 
INHIBIT Trial (Beta Radiation to Inhibit Recurrence of In-Stent Restenosis). 
  Clinical and Angiographic Results of the Multicenter, Randomized, Double-Blind Study
  Waksman R  Presented at the AHA 2000 Meeting Abstract Circulation. 2000;102:e9046 
The INHIBIT trial assessed the safety and effectiveness of intracoronary beta radiation in 332 patients with in-stent restenosis. The Guidant-sponsored trial successfully demonstrated a significant reduction in the primary clinical and angiographic endpoints of MACE TLR at 9 months by 56%, MACE with any TVR by 33%, and late thrombosis rate by binary restenosis by 66%. There were also no differences in the edge effect rates between the active and control treated groups.
Click here or here to view the INHIBIT slide set. For additional Comments Click here  

Review 
The role of IVUS imaging in vascular brachytherapy 
  by Carlier SG et al
  Int J Cardiovasc Intervent 2000; 3: 3–12
  Click here to view the full article
Review of the use of IVUS in the clinical studies of brachytherapy conducted to date

Effect of intracoronary gamma-radiation therapy on in-stent restenosis: An IVUS analysis from the GAMMA-1 Study
  Mintz GS et al
  Circulation 2000;102:2915-8 
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0011113039 
Gamma-Radiation therapy can effectively prevent recurrent in-stent restenosis by inhibiting neointimal formation within the stent. At the stent edge, there were no significant differences between (192)Ir and placebo patients.

Serial Intravascular Ultrasound Analysis of the Impact of Lesion Length on the Efficacy of Intracoronary gamma-Irradiation for Preventing Recurrent In-Stent Restenosis
  Ahmed JM Leon MB
  Circulation 2001;103 188-191
  http://circ.ahajournals.org/cgi/content/abstract/103/2/188
Brachytherapy may be less effective in longer ISR lesions because of the greater variability and longer source-to-target distances in diffuse ISR. 

Three-dimensional intravascular ultrasound assessment of noninjured edges of beta-irradiated coronary segments
 
Kozuma K, et al. 
 
Circulation 2000;102:1484-9
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0011004137  
  Click here to view the slide
The edge effect occurs in the noninjured margins of radiation source train in both irradiated and placebo patients. Thus, low-dose radiation may not play an important role in this phenomenon, whereas nonmeasurable device injury may be considered a plausible alternative explanation.

Late thrombosis following intracoronary brachytherapy
  Waksman R et al.
  Catheter Cardiovasc Interv 2000;49:344-7
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0010700073
Radiation is also known to delay the healing process and may contribute to a new phenomenon of late thrombosis. This report present two cases of patients with in-stent restenosis who underwent intervention followed by intracoronary vascular radiation therapy (utilizing beta and gamma radiation) and presented with acute onset of unstable angina. Angiographic study demonstrated late thrombosis, which were treated successfully with the Angiojet thrombectomy device.

AHA 2000 Meeting Coverage

Three-year clinical and angiographic follow-up after intracoronary radiation : results of a randomized clinical trial 
 
Teirstein PS et al.
  Circulation 2000;101:360-5
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0010653825
The early clinical benefits observed after treatment of coronary restenosis with (192)Ir appear durable at late follow-up. Angiographic restenosis continues to be significantly reduced in (192)Ir-treated patients, but a small amount of late loss was observed between the 6-month and 3-year follow-up time points. No events occurred in the (192)Ir group to suggest major untoward effects of vascular radiotherapy. At 3-year follow-up, vascular radiotherapy continues to be a promising new treatment for restenosis.

Methodological and clinical implications of the relocation of the minimal luminal diameter after intracoronary radiation therapy. Dose Finding Study Group 
  Sabate M et al. 
  J Am Coll Cardiol 2000;36:1536-41 
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0011079655 
  Click here to view the slide
Relocation of the MLD is commonly demonstrated after BA and brachytherapy, and it should be taken into account during the analysis of the results of radiation clinical trials.

Geographic miss: a cause of treatment failure in radio-oncology applied to intracoronary radiation therapy
  Sabate M et al.
  Circulation 2000;101:2467-71
  http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=0010831519
Restenosis rate was significantly higher in the injured edges (10% within IRS, 40.9% in geographic miss edges, and 1.9% in uninjured edges; P<0.001) supporting the hypothesis that the combination of injury and low-dose beta- radiation induces deleterious outcome.

Intracoronary beta-radiation therapy inhibits recurrence of in-stent restenosis
Waksman R, et al.
Circulation 2000;101:1895-8.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=10779453 
http://www.circulationaha.org/cgi/content/full/101/16/1895 

Intracoronary gamma-radiation therapy after angioplasty inhibits recurrence in patients with in-stent restenosis
Waksman R, et al.
Circulation 2000;101:2165-71.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=10801757 
http://www.circulationaha.org/cgi/content/full/101/18/2165 

Effect of intracoronary gamma-radiation therapy on in-stent restenosis: An intravascular ultrasound analysis from the gamma-1 study
Mintz GS, et al.
Circulation 2000;102:2915-8.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=11113039 
http://www.circulationaha.org/cgi/content/full/102/24/2915 

Intracoronary brachytherapy not associated with changes in major side branches
Cottin Y, et al.
Catheter Cardiovasc Interv 2000;51:154-8.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=11025567 

Serial volumetric intravascular ultrasound analysis of the efficacy of beta irradiation in preventing recurrent in-stent restenosis
Bhargava B, et al.
Am J Cardiol 2000;85:651-3, A10.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=11078283 

Safety of intracoronary gamma-radiation on uninjured reference segments during the first 6 months after treatment of in-stent restenosis: a serial intravascular ultrasound study
Ahmed JM, et al.
Circulation 2000;101:2227-30. 
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=10811587 
http://www.circulationaha.org/cgi/content/full/101/19/2227 

Two-year follow-up after catheter-based radiotherapy to inhibit coronary restenosis
Teirstein PS, et al.
Circulation 1999;99:243-7.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9892590 
http://www.circulationaha.org/cgi/content/full/99/2/243 

Radiation vascular therapy: a novel approach to preventing restenosis
Williams DO.
Am J Cardiol 1998;81:18E-20E.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9551590 

Intracoronary brachytherapy in the Cath Lab. Physics dosimetry, technology and safety considerations
Waksman R.
Herz 1998;23:401-6.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9816527 

Endovascular brachytherapy: overcoming "practical" obstacles
Waksman R.
Am J Cardiol 1998;81:21E-26E.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9551591 

A subgroup analysis of the Scripps Coronary Radiation to Inhibit Proliferation Poststenting Trial
Teirstein PS, et al.
Int J Radiat Oncol Biol Phys 1998;42:1097-104.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9869235 

Gamma versus beta radiation for the treatment of restenosis
Teirstein PS.
Herz 1998;23:335-6.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9816518 

Radiotherapy to inhibit coronary restenosis: kind of a light at the end of the tunnel?
Teirstein PS.
Eur Heart J 1998;19:3-6.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9503167 

Cellular and molecular mechanisms of radiation inhibition of restenosis. Part I: role of the macrophage and platelet-derived growth factor
Rubin P, et al.
Int J Radiat Oncol Biol Phys 1998;40:929-41.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9531379 

Intracoronary radiation with a 32P source wire
Lee DP, et al.
Herz 1998;23:362-5.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9816522 

Endovascular beta-radiation to reduce restenosis after coronary balloon angioplasty: results of the beta energy restenosis trial (BERT)
King SB, 3rd, et al.
Circulation 1998;97:2025-30.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9610532 

Catheter-based radiotherapy to inhibit restenosis after coronary stenting
Teirstein PS, et al.
N Engl J Med 1997;336:1697-703.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9180087 

Intravascular radiation therapy in atherosclerotic disease: promises and premises
Bertrand OF, et al.
Eur Heart J 1997;18:1385-95.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9458443 

Long-term angiographic and clinical outcome after percutaneous transluminal coronary angioplasty and intracoronary radiation therapy in humans
Circulation 1997;96:1067-8.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=9286927 

The dose distribution produced by a 32P source for endovascular irradiation
Xu Z, et al.
Int J Radiat Oncol Biol Phys 1996;36:933-9.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960523 

Intracoronary irradiation: dose response for the prevention of restenosis in swine
Weinberger J, et al.
Int J Radiat Oncol Biol Phys 1996;36:767-75.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960502 

Local catheter-based intracoronary radiation therapy for restenosis
Waksman R.
Am J Cardiol 1996;78:23-8.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8751843 

192IR endovascular brachytherapy for avoidance of intimal hyperplasia after percutaneous transluminal angioplasty and stent implantation in peripheral vessels: 6 years of experience
Schopohl B, et al.
Int J Radiat Oncol Biol Phys 1996;36:835-40.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960510 

Endovascular beta-irradiation after percutaneous transluminal coronary balloon angioplasty
Popowski Y, et al.
Int J Radiat Oncol Biol Phys 1996;36:841-5.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960511 

Management of peripheral vascular disease: innovative approaches using radiation therapy
Nori D, et al.
Int J Radiat Oncol Biol Phys 1996;36:847-56.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960512 

High dose rate intracoronary radiation for inhibition of neointimal formation in the stented and balloon-injured porcine models of restenosis: angiographic, morphometric, and histopathologic analyses
Mazur W, et al.
Int J Radiat Oncol Biol Phys 1996;36:777-88.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960503 

Endovascular brachytherapy to inhibit coronary artery restenosis: an introduction to the SCRIPPS Coronary Radiation to Inhibit Proliferation Post Stenting trial
Massullo V, et al.
Int J Radiat Oncol Biol Phys 1996;36:973-5.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960532 

The potential role of external beam radiation in preventing restenosis after coronary angioplasty
Koh WJ, et al.
Int J Radiat Oncol Biol Phys 1996;36:829-34.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960509 

Pure beta-particle-emitting stents inhibit neointima formation in rabbits
Hehrlein C, et al.
Circulation 1996;93:641-5.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8640989 

Experimental results with endovascular irradiation via a radioactive stent
Carter AJ, et al.
Int J Radiat Oncol Biol Phys 1996;36:797-803.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960505 

Dosimetric considerations for catheter-based beta and gamma emitters in the therapy of neointimal hyperplasia in human coronary arteries
Amols HI, et al.
Int J Radiat Oncol Biol Phys 1996;36:913-21.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8960521 

Dosimetry of a radioactive coronary balloon dilatation catheter for treatment of neointimal hyperplasia
Amols HI, et al.
Med Phys 1996;23:1783-8.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8946374 

Intracoronary irradiation markedly reduces neointimal proliferation after balloon angioplasty in swine: persistent benefit at 6-month follow-up
Wiedermann JG, et al.
J Am Coll Cardiol 1995;25:1451-6.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=7722148 

Intracoronary low-dose beta-irradiation inhibits neointima formation after coronary artery balloon injury in the swine restenosis model
Waksman R, et al.
Circulation 1995;92:3025-31.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=7586273 

Endovascular low-dose irradiation inhibits neointima formation after coronary artery balloon injury in swine. A possible role for radiation therapy in restenosis prevention
Waksman R, et al.
Circulation 1995;91:1533-9.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=7867195 

Intra-arterial beta irradiation prevents neointimal hyperplasia in a hypercholesterolemic rabbit restenosis model
Verin V, et al.
Circulation 1995;92:2284-90.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=7554213 

The effects of low-dose radiation on neointimal hyperplasia
Sarac TP, et al.
J Vasc Surg 1995;22:17-24.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=7602708 

Intracoronary irradiation markedly reduces restenosis after balloon angioplasty in a porcine model
Wiedermann JG, et al.
J Am Coll Cardiol 1994;23:1491-8.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8176112 

Prophylactic endovascular radiotherapy to prevent intimal hyperplasia after stent implantation in femoropopliteal arteries
Liermann D, et al.
Cardiovasc Intervent Radiol 1994;17:12-6.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=8187126 

Effect of external beam irradiation on neointimal hyperplasia after experimental coronary artery injury
Schwartz RS, et al.
J Am Coll Cardiol 1992;19:1106-13.
http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?db=m&form=6&dopt=r&uid=1552102