Uto Tomoyuki
Department of Radiology, Ikeda Municipal Hospital.
Nihon Hoshasen Gijutsu Gakkai Zasshi. 2002 Nov;58(11):1524-30. doi: 10.6009/jjrt.kj00000921505.
Whole-body gallium planar scintigraphy is a mainstay for the detection of tumors and inflammatory lesions. Recently, gallium SPECT (single photon emission computed tomography) has become more common in the clinical setting. This diagnostic modality is widely employed in our hospital, and lesions are actually detected by SPECT in some cases. Although the contrast of SPECT images is better than that of planar images, spatial resolution is limited by the limited matrix size. Thus, the overall diagnostic utility of SPECT remains to be confirmed. The usefulness of SPECT for the detection of gallium-accumulated lesions was evaluated in a phantom. In this study, we showed that SPECT is able to detect more smaller and lower gallium accumulations than planar imaging. Thus, SPECT imaging is useful in gallium scintigraphy.
全身镓平面闪烁扫描是检测肿瘤和炎症性病变的主要手段。近年来，镓单光子发射计算机断层扫描（SPECT）在临床环境中变得更为常见。这种诊断方式在我们医院被广泛应用，在某些情况下，确实通过SPECT检测到了病变。尽管SPECT图像的对比度优于平面图像，但空间分辨率受限于有限的矩阵大小。因此，SPECT的整体诊断效用仍有待证实。在一个模型中评估了SPECT对检测镓聚集性病变的有用性。在本研究中，我们表明SPECT比平面成像能够检测到更多更小、更低的镓聚集。因此，SPECT成像在镓闪烁扫描中是有用的。
