用于诊断半月板撕裂的单光子发射计算机断层扫描成像
SPECT imaging in the diagnosis of meniscal tears.
作者信息
Grevitt M P, Taylor M, Churchill M, Allen P, Ryan P J, Fogelman I
机构信息
Department of Orthopaedic, Guy's Hospital, London, UK.
出版信息
J R Soc Med. 1993 Nov;86(11):639-41. doi: 10.1177/014107689308601110.
Sixty patients scheduled for arthroscopy of a knee because of suspected meniscal tears had preoperative planar and single photon emission computed tomography (SPECT) radionuclide scans. A crescentic pattern of uptake on the SPECT transaxial view was used as a criterion for diagnosing a tear of a meniscus. The sensitivity of the investigation was 77%, specificity 74%, negative predictive value (NPV) 65%, positive predictive value (PPV) 83%, and accuracy 76%. Tears of the posterior horn of the cartilage were also associated with intense focal uptake on the transaxial view as well as increased equilibrium activity in the adjacent femoral condyle. When these appearances were included as additional criteria the sensitivity rose to 90%, NPV 81%, and accuracy 84%. This study confirms the usefulness of SPECT imaging in identifying meniscal tears.
60例因疑似半月板撕裂而计划接受膝关节镜检查的患者进行了术前平面和单光子发射计算机断层扫描（SPECT）放射性核素扫描。SPECT横轴位上的新月形摄取模式被用作诊断半月板撕裂的标准。该检查的敏感性为77%，特异性为74%，阴性预测值（NPV）为65%，阳性预测值（PPV）为83%，准确性为76%。软骨后角撕裂在横轴位上也与强烈的局灶性摄取以及相邻股骨髁的平衡活性增加有关。当将这些表现作为附加标准时，敏感性升至90%，NPV为81%，准确性为84%。本研究证实了SPECT成像在识别半月板撕裂中的有用性。
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