Geographical miss during intracoronary irradiation: impact on restenosis and determination of required safety margin length
نویسندگان
چکیده
منابع مشابه
Edge stenosis and geographical miss following intracoronary gamma radiation therapy for in-stent restenosis.
OBJECTIVES We sought to determine the relationship between geographical miss (GM) and edge restenosis (ERS) following intracoronary radiation therapy. BACKGROUND Edge restenosis may be a limitation of intracoronary irradiation to prevent in-stent restenosis (ISR). Inadequate radiation source coverage of the injured segment (GM) has been proposed as a cause of ERS. We studied the relationship ...
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reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...
Geographical miss of the prostate during image‐guided radiotherapy with a 6‐mm posterior expansion margin
INTRODUCTION Our department commonly uses a planning target volume (PTV) expansion of 6 mm posterior and 1 cm in all other directions when treating prostate cancer patients with image-guided radiotherapy (IGRT). This study aimed to test the adequacy of this PTV expansion by assessing geographical miss of the prostate on post-treatment cone-beam CT (CBCT) and identify those at risk of geographic...
متن کاملSerial intravascular ultrasound analysis of the impact of lesion length on the efficacy of intracoronary gamma-irradiation for preventing recurrent in-stent restenosis.
BACKGROUND The relation between lesion length and effectiveness of brachytherapy is not well studied. METHODS AND RESULTS We compared serial (postintervention and follow-up) intravascular ultrasound findings in 66 patients with native coronary artery in-stent restenosis (ISR) who were treated with (192)Ir (15 Gy delivered 2 mm away from the radiation source). Patients were enrolled in the Was...
متن کاملSerial Intravascular Ultrasound Analysis of the Impact of Lesion Length on the Efficacy of Intracoronary g-Irradiation for Preventing Recurrent In-Stent Restenosis
Background—The relation between lesion length and effectiveness of brachytherapy is not well studied. Methods and Results—We compared serial (postintervention and follow-up) intravascular ultrasound findings in 66 patients with native coronary artery in-stent restenosis (ISR) who were treated with Ir (15 Gy delivered 2 mm away from the radiation source). Patients were enrolled in the Washington...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2002
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(02)02108-3