نتایج جستجو برای: dose area product

تعداد نتایج: 1137676  

Arash Gholoobi Hosein Nademi Mohammad Taghi Bahreyni Toossi, Seyedeh Farideh Baradaran

Introduction The increasing practice of interventional fluoroscopy in diagnosis and treatment of cardiovascular disease has risen attention to improve radiation protection of patients and cardiologists in these relatively high dose techniques. Therefore, nowadays there is an emphasis on the measurement of radiation dose received by patients and cardiologists arising from the relevant procedures...

Introduction: Phantom studies facilitate the implementation of radiation dose surveillance as a function of radiographic technical parameters for minimizing patient radiation dose. The evidence of such investigations can then be used to evaluate technical parameters used in the radiographic procedures to reduce radiation dose without compromising the image quality. Material and Methods: This ex...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی صنایع 1387

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

Journal: :AJNR. American journal of neuroradiology 2016
P Yang A Ahmed S Schafer D Niemann B Aagaard-Kienitz K Royalty C Strother

BACKGROUND AND PURPOSE Volume-of-interest C-arm CT is a novel technique for imaging of intracranial high-contrast objects. We performed this study to evaluate the potential diagnostic value and radiation dose reduction of this technique for imaging of intracranial stents and flow diverters. MATERIALS AND METHODS Twenty-seven patients were imaged with a VOI C-arm CT scan following treatment wi...

Journal: :iranian journal of medical physics 0
mohammad taghi bahreyni toossi medical physics research center, medical physics department, mashhad university of medical sciences, mashhad, iran.

introduction the increasing practice of interventional fluoroscopy in diagnosis and treatment of cardiovascular disease has risen attention to improve radiation protection of patients and cardiologists in these relatively high dose techniques. therefore, nowadays there is an emphasis on the measurement of radiation dose received by patients and cardiologists arising from the relevant procedures...

Journal: :PDA journal of pharmaceutical science and technology 2010
Barry P Fairand Niki Fidopiastis

This paper discusses an approach for establishing a sterilization dose for an aseptically processed product after the product is in its final packaged state, in other words, terminal sterilization. It applies to aseptic processes where the fill/finish operation is conducted in a closed system using isolator or restricted access barrier technology, that is, no human intervention. The example tha...

Journal: :JACC. Cardiovascular interventions 2014
Sunil J Ghelani Andrew C Glatz Sthuthi David Ryan Leahy Russel Hirsch Laurie B Armsby Sara M Trucco Ralf J Holzer Lisa Bergersen

OBJECTIVES The aim of this study was to define age-stratified, procedure-specific benchmark radiation dose levels during interventional catheterization for congenital heart disease. BACKGROUND There is a paucity of published literature with regard to radiation dose levels during catheterization for congenital heart disease. Obtaining benchmark radiation data is essential for assessing the imp...

Journal: :AJNR. American journal of neuroradiology 1992
V M Feygelman W Huda K R Peters

PURPOSE To determine values of the effective dose equivalent, HE, for patients undergoing diagnostic cerebral angiography and compare these values with radiation doses received by patients undergoing other diagnostic examinations of the head. METHODS The radiographic techniques for ten patients undergoing cerebral angiography were recorded and used to obtain the product of the entrance skin d...

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