Spect Camera(幽灵相机)研究综述
Spect Camera 幽灵相机 - SPECT cadmium-zinc-telluride camera in a forward-leaning bikerlike position, which may potentially lower diaphragmatic attenuation and reduce breathing-related cardiac motion, in a manner comparable to the prone position proposed with other SPECT cameras. [1] We report data from our first twelve months of experience with flow quantification with CZT SPECT Patients referred for vasodilator stress MPI were randomly selected for dynamic imaging on a DSPECT camera. [2] With tremendous development of CZT-based SPECT cameras over the past several years, the nuclear cardiology community have been calling for better perfusion radiotracers with improved extraction and biodistribution properties. [3] Once trained, our deep Convolutional Neural Network (CNN) takes the projections from the SPECT camera and CT-based attenuation map as input and outputs the scatter projections. [4] PurposeRecently, the feasibility of myocardial blood flow (MBF) quantitation using rapid-rotating gantry (RRG) and cadmium–zinc–telluride (CZT) SPECT cameras has been demonstrated. [5] 4 total units (PET and SPECT Cameras) per 1 M people. [6] Mean E was compared between sites with ‘basic’ RSP (defined as elimination of thallium-based protocols and use of stress-only (SO) imaging on conventional single photon emission computed tomography (SPECT) cameras) and those with ‘advanced’ capabilities (sites that additionally used solid-state detector (SSD) SPECT cameras, advanced post-processing software (APPS) or positron emission tomography (PET) imaging), after matching patients by age, gender, and weight. [7]SPECT 镉-锌-碲化物相机处于向前倾斜的骑自行车姿势，这可能会降低膈肌衰减并减少与呼吸相关的心脏运动，其方式与其他 SPECT 相机建议的俯卧位相当。 [1] 我们报告了前 12 个月使用 CZT SPECT 进行流量量化的数据 随机选择接受血管扩张剂应激 MPI 的患者在 DSPECT 相机上进行动态成像。 [2] 随着过去几年基于 CZT 的 SPECT 相机的巨大发展，核心脏病学界一直在呼吁更好的灌注放射性示踪剂具有改进的提取和生物分布特性。 [3] 训练完成后，我们的深度卷积神经网络 (CNN) 将 SPECT 相机的投影和基于 CT 的衰减图作为输入并输出散射投影。 [4] 目的最近，已经证明了使用快速旋转机架 (RRG) 和镉-锌-碲 (CZT) SPECT 相机进行心肌血流量 (MBF) 定量的可行性。 [5] 每 100 万人共有 4 台（PET 和 SPECT 相机）。 [6] 在具有“基本”RSP（定义为消除基于铊的协议和在传统单光子发射计算机断层扫描（SPECT）相机上使用仅应力（SO）成像）和具有“高级”能力的站点之间比较平均 E（在按年龄、性别和体重匹配患者后，额外使用固态检测器 (SSD) SPECT 相机、高级后处理软件 (APPS) 或正电子发射断层扫描 (PET) 成像的站点。 [7]
Cardiac Spect Camera 心脏光谱相机
MethodsImage noise was calculated for images from 43 patients acquired on both a conventional and a multiple-pinhole cardiac SPECT camera. [1] BACKGROUND A novel cardiac SPECT camera with cadmium-zinc-telluride (CZT) based technology has a fixed array of semiconductor detectors paired with pinhole collimators focused on the heart. [2] METHODS Twenty patients referred for ERNA underwent standard in vitro 99mTc-labeling of red blood cells (RBC), and were initially imaged following a low-dose (~ 8 mCi) injection using a dedicated cardiac SPECT camera, and then had planar imaging following a high-dose (~ 25 mCi) injection. [3] BACKGROUND Dedicated cardiac SPECT cameras which employ multi-pinhole detectors have variable photon sensitivity within the camera's field-of-view such that a lower number of photon counts is typically detected from the base of the heart than from the apex. [4]方法 计算来自传统和多针孔心脏 SPECT 相机的 43 名患者的图像的图像噪声。 [1] 背景 采用基于镉-锌-碲化物 (CZT) 技术的新型心脏 SPECT 相机具有固定的半导体探测器阵列，与聚焦于心脏的针孔准直器配对。 [2] 方法 20 名接受 ERNA 转诊的患者接受了标准的体外红细胞 (RBC) 99mTc 标记，最初在使用专用心脏 SPECT 相机进行低剂量 (~ 8 mCi) 注射后进行成像，然后在高剂量后进行平面成像-剂量（~ 25 mCi）注射。 [3] 背景 采用多针孔检测器的专用心脏 SPECT 相机在相机的视场内具有可变的光子灵敏度，因此从心脏底部检测到的光子计数通常比从心尖检测到的光子计数少。 [4]