نتایج جستجو برای: operative gamma camera
تعداد نتایج: 269893 فیلتر نتایج به سال:
OBJECTIVE Gamma cameras contain energy discriminators that allow only those photons within a specified energy range to be recorded. A spontaneous shift in peak of 1 head of a dual-head gamma camera may cause artifacts. We present our experience with the incidental occurrence of off-peak status in 1 head of a dual-head gamma camera that resulted in subsequent artifacts and poor-quality images. ...
BACKGROUND Intraoperative sentinel node (SN) identification in patients with head-and-neck malignancies can be challenging due to unexpected drainage patterns and anatomical complexity. Here, intraoperative navigation-based guidance technologies may provide outcome. In this study, gamma camera-based freehandSPECT was evaluated in combination with the hybrid tracer ICG-99mTc-nanocolloid. MATER...
UNLABELLED This study evaluated a novel high-resolution breast-specific gamma camera (HRBGC) for the detection of suggestive breast lesions. METHODS Fifty patients (with 58 breast lesions) for whom a scintimammogram was clinically indicated were prospectively evaluated with a general-purpose gamma camera and a novel HRBGC prototype. The results of conventional and high-resolution nuclear stud...
Introduction The post-operative period is characterised by increased IL-6 production and clinical features of immune suppression. In vitro anti-inflammatory actions of IL-6 are mediated through suppression of interferon gamma (IFNg) [1]. The clinical significance of IL-6 in mediating post-operative immune suppression remains unclear. Objectives To evaluate the role of IL-6 pathways in post-oper...
1. Tatlidede S, Egemen O, Bas L. A useful tool for intraoperative photography: underwater camera case. Ann Plast Surg 2008;60:239-40. 2. Raigosa M, Benito-Ruiz J, Fontdevila J, Ballesteros JR. Waterproof camera case for intraoperative photographs. Aesthetic Plast Surg 2008;32:368‐70. 3. Tsai J, Liao HT, Wang WK, Lam WL, Kuo LM, Chen RF, et al. A safe and efficient method for intra-operative dig...
The purpose of this study was to compare the sensitivity and specificity of breast-specific gamma imaging (BSGI) using a high-resolution breast-specific gamma camera and magnetic resonance imaging (MRI) in patients with indeterminate breast findings. Twenty-three women with an indeterminate breast finding that required BSGI and MRI as deemed necessary by the interpreting radiologist or referrin...
n Abstract: The purpose of this study was to compare the sensitivity and specificity of breast-specific gamma imaging (BSGI) using a high-resolution breast-specific gamma camera and magnetic resonance imaging (MRI) in patients with indeterminate breast findings. Twenty-three women with an indeterminate breast finding that required BSGI and MRI as deemed necessary by the interpreting radiologist...
The objective of this study is to investigate a high performance and lower cost compact gamma camera module for a multi-head small animal SPECT system. A compact camera module was developed using a thin Lutetium Oxyorthosilicate (LSO) scintillation crystal slice coupled to a Hamamatsu H8500 position sensitive photomultiplier tube (PSPMT). A two-stage charge division readout board based on a nov...
Movable gamma camera, 2020tc ImagerTM, was light miniaturized using Si photodiode as a semiconductor sensor instead of photomultiplier tubes. To validate performance of this new camera in cardiac pool scintigraphy, multigated equilibrium radionuclide ventriculography using the moving cardiac phantom was performed with 2020tc Imager and a conventional Agner-type gamma camera (PRISM 3000). [Metho...
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