نتایج جستجو برای: gamma camera

تعداد نتایج: 177804  

Journal: :IEEE Transactions on Nuclear Science 1976

Journal: :RADIOISOTOPES 2001

Journal: :Annals of nuclear medicine 2003
Shin-ichiro Kumita Keiji Tanaka Keiichi Cho Naoki Sato Hidenobu Nakajo Masahiro Toba Yoshimitsu Fukushima Sunao Mizumura Teruo Takano Tatsuo Kumazaki

PURPOSE The solid-state gamma camera 2020tc Imager (Digirad, CA) is now commercially available and has been clinically applied. The present study evaluates the feasibility of equilibrium radionuclide ventriculography (ERNV) within a 3 min period using this camera equipped with a highly sensitive collimator. MATERIALS AND METHODS ERNV was performed from the best septal position (left anterior ...

Journal: :journal of medical signals and sensors 0
mohsen hajizadeh-safar m ghorbani s khoshkharam z ashrafi

gamma camera is an important apparatus in nuclear medicine imaging. its detection part is consists of a scintillation detector with aheavy collimator. substitution of semiconductor detectors instead of scintillator in these cameras has been effectively studied. in this study, it is aimed to introduce a new design of p-n semiconductor detector array for nuclear medicine imaging. a p-n semiconduc...

Journal: :iranian journal of nuclear medicine 2004
mehrdad hozhabrosadati hossein rajabi mohammad eftekhari

background: measurement of absolute or differential renal function using radiotracers plays an important role in the clinical management of various renal diseases. gamma camera quantitative methods in approximation of renal clearance may potentially be as accurate as plasma clearance methods. however some critical factors such as kidney depth and background counts are still troublesome in the u...

Hossein Rajabi, Mehrdad Hozhabrosadati Mohammad Eftekhari,

Background: Measurement of absolute or differential renal function using radiotracers plays an important role in the clinical management of various renal diseases. Gamma camera quantitative methods in approximation of renal clearance may potentially be as accurate as plasma clearance methods. However some critical factors such as kidney depth and background counts are still troublesome in...

Journal: :Annals of nuclear medicine 2005
Mariko Goto Chio Okuyama Takao Kubota Yo Ushijima Tsunehiko Nishimura

PURPOSE The solid-state gamma camera is now commercially available offering the advantages of a compact and portable system, currently used mainly in the cardiac region. We evaluate the ability of the solid-state gamma camera to depict axillary sentinel lymph nodes (SLNs) in breast cancer patients. MATERIALS AND METHODS Preoperative SLN lymphoscintigraphy (LSG) was performed in 19 patients wi...

Journal: :Journal of nuclear medicine technology 2000
A A Elkamhawy J R Rothenbach S Damaraju S M Badruddin

OBJECTIVE We sought to determine the best parameters for rapid performance of daily quality control testing of intrinsic uniformity and relative sensitivity for the single-head gamma-camera system in our nuclear medicine department. METHODS The effects of the following parameters on intrinsic uniformity were studied: gamma source activity, number of acquired counts for the flood image, source...

Journal: :Chinese Science Bulletin 2011

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