Comparison of small field of view gamma camera systems for scintimammography
Comparison of small field of view gamma camera systems for scintimammography
复制标题
DOI：
10.1097/00006231-200505000-00008
复制
发表时间：
2005-05-01
影响因子：
1.5
通讯作者：
Collins, DA
中科院分区：
文献类型：
--
作者：
Hruska, CB;O'Connor, MK;Collins, DA
目的比较三种紧凑型γ照相机系统用于乳腺X线摄影的性能特点。方法采用模拟肿瘤模型，对多晶碘化钠系统（Dilon 6800）、多晶碘化铯系统（Digirad 2020 tc Imager）和碲锌镉（CZT）探测器进行评价。一个传统的愤怒为基础的伽马相机也进行了评估comparative purposes.Results传统的伽马相机具有最高的固有灵敏度的四个系统，并利用最高分辨率的准直器。然而，原型CZT和CsI系统产生了最好的空间分辨率在0- 5厘米的范围内，从准直器的脸和更好地可视化小（5-7毫米）tumors.Conclusion除了靠近乳房的优势，三个紧凑的探测器提供了上级性能的传统伽马相机scinimammography。(c)2005年利平科特威廉姆斯&威尔金斯。
Objective To compare the performance characteristics of three compact gamma camera systems for scintimammography.Methods A multi-crystal Nal system (Dilon 6800), a multicrystal CsI system (Digirad 2020tc Imager) and a prototype cadmium zinc telluride (CZT) detector were evaluated using a breast phantom with simulated tumours of 1.8-9.8 mm in diameter and a tumour to background ratio of 5.6: 1. A conventional Anger-based gamma camera was also evaluated for comparative purposes.Results The conventional gamma camera had the highest intrinsic sensitivity of the four systems and utilized the highest resolution collimator. However, the prototype CZT and the CsI systems yielded the best spatial resolution over the range 0-5cm from the collimator face and better visualized small (5-7 mm) tumours.Conclusion In addition to the advantage of close proximity to the breast, two of the three compact detectors offered superior performance to a conventional gamma camera for scintimammography. (c) 2005 Lippincott Williams & Wilkins.