The role of single photon emission computed tomography in bone imaging.

The role of single photon emission computed tomography in bone imaging.
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单光子发射计算机断层扫描在骨成像中的作用。

DOI:
10.1053/snuc.2001.18736
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发表时间:
2001
影响因子:
4.9
通讯作者:
Lawrence E. Holder
Lawrence E. Holder
中科院分区:
医学2区
文献类型:
--
作者:
I. Sarikaya;I. Sarikaya;A. Sarıkaya;A. Sarıkaya;Lawrence E. Holder;Lawrence E. Holder

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骨的单光子发射计算机断层扫描(SPECT)是常规核医学实践中第二常见的SPECT检查,心脏SPECT是最常见的。与平面血管造影相比,SPECT增加了图像对比度,改善了病变检测和定位。研究已经记录了SPECT提供的独特诊断信息,特别是股骨头缺血性坏死、背痛患者、恶性和良性脊柱病变的鉴别诊断、脊柱转移癌的检测、颞下颌关节内紊乱的诊断以及急性和慢性膝关节疼痛的评价。虽然不太严格的记录,SPECT越来越多地用于所有类型的情况下,需要更精确的解剖定位异常示踪剂摄取。骨SPECT的有效性随着适当准直器的选择而增加,这允许获得足够的计数并最小化患者到探测器的距离。低能量、超高分辨率或高分辨率准直优于通用准直器。多头伽马相机可以增加获得的计数或缩短采集时间,使SPECT采集在忙碌的部门中更实用,并且与单头相机相比还提高了图像质量。迭代重建,使用有序子集估计最大化,提供更好的质量比经典的过滤反投影算法的图像。三维图像分析往往有助于病变定位。
Single photon emission computed tomography (SPECT) of the bone is the second most frequently performed SPECT examination in routine nuclear medicine practice, with cardiac SPECT being the most frequent. Compared with planar scintigraphy, SPECT increases image contrast and improves lesion detection and localization. Studies have documented the unique diagnostic information provided by SPECT, particularly for avascular necrosis of the femoral head, in patients with back pain, for the differential diagnosis between malignant and benign spinal lesions, in the detection of metastatic cancer in the spine, for the diagnosis of temporomandibular joint internal derangement, and for the evaluation of acute and chronic knee pain. Although less rigorously documented, SPECT is being increasingly used in all types of situations that demand more precise anatomic localization of abnormal tracer uptake. The effectiveness of bone SPECT increases with the selection of the proper collimator, which allows one to acquire adequate counts and minimize the patient-to-detector distance. Low-energy, ultrahigh-resolution or high-resolution collimation is preferred over all-purpose collimators. Multihead gamma cameras can increase the counts obtained or shorten acquisition time, making SPECT acquisitions more practical in busy departments and also increasing image quality compared with single-head cameras. Iterative reconstruction, with the use of ordered subsets estimation maximization, provides better quality images than classical filtered back projection algorithms. Three-dimensional image analysis often aids lesion localization.
急性膝关节积血后的骨成像。
DOI: 10.1007/bf01552154
发表时间: 1993
期刊: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA
影响因子: --
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DOI: --
发表时间: 1987
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影响因子: --
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Krasnow,AZ;Collier,BD;Kneeland,JB;Carrera,GF;Ryan,DE;Gingrass,D;Sewall,S;Hellman,RS;Isitman,AT;Froncisz,W
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下颌骨髁定量骨骼闪烁扫描的单光子发射计算机断层扫描和平面成像的比较。
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发表时间: 1995
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影响因子: --
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