Comparison Of SPECT/CT V/Q Scan, CTPA & Clinical Probability Of ...

Skip to main content Meeting ReportGeneral Clinical Specialties Track Comparison of SPECT/CT V/Q scan, CTPA & clinical probability of pulmonary embolism. Qian Zhao, Haiyan Yang, Xiaohong Zhu and Rong Wang Journal of Nuclear Medicine May 2018, 59 (supplement 1) 514; Qian Zhao 1Department of Nuclear Medicine General Hospital of Ningxia Medical University Yinchuan, Ningxia China

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Haiyan Yang 2Ningxia Medical University Yinchuan, Ningxia China

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Xiaohong Zhu 2Ningxia Medical University Yinchuan, Ningxia China

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Rong Wang 1Department of Nuclear Medicine General Hospital of Ningxia Medical University Yinchuan, Ningxia China

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Abstract

514

Purpose: Wells’ score is the one of the commonly used clinical probability assessment of pulmonary embolism (PE). SPECT/CT Ventilation-Perfusion (V/Q) scan and CTPA were the two imaging techniques for the diagnosis of PE. This study compared the diagnostic efficacy of SPECT/CT V/Q scan, CTPA and wells’ probability of PE.

Methods: Retrospective study of 288 patients who underwent SPECT-CT/VQ scan and CTPA within the same admission and <72 h apart for evaluation of PE during July 2012 to July 2017. Different modality imaging were reviewed and compared. Results: Of the 288 patients, 86 were diagnosed as PE clinically. The sensitivity, specificity, accuracy, PPV and NPV of SPECT/CT V/Q scan was 75.58%, 92.08%, 87.15%, 80.25% and 89.86%, respectively. That of CTPA was 63.79%, 80.00%, 73.86%, 66.07% and 78.35%, while Wells’ score as 62.79%, 52.24%, 55.40%, 36.00% and 76.64%, respectively. The most common clinical presentations were shortness of breath (SOB) (75.69%), chest pain (33.33%), leg pain or swelling (31.60%), syncope (3.12%) and hemoptysis (2.78%). Conclusion: Compared with CTPA and clinical probability score of PE, SPECT/CT V/Q has the highest sensitivity, specificity, accuracy, PPV and NPV for diagnosing PE.

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Journal of Nuclear Medicine Vol. 59, Issue supplement 1 May 1, 2018

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