The Incremental Value of Single-photon Emission Computed Tomography / Computed Tomography in Post-thyroidectomy Iodine-131 Scanning of Differentiated Thyroid Carcinoma. Part II : Pictorial Illustration

Full Article

P Tang, K Wang, CY Cheung, SF Leung

Hong Kong J Radiol 2012;15:260-7

This pictorial essay illustrates how iodine-131 single-photon emission computed tomography / computed tomography (SPECT/CT) fusion imaging might improve the interpretation of planar iodine-131 whole-body images in post-surgical patients with differentiated thyroid carcinoma. Examples are given to illustrate how SPECT/CT fusion images can enhance anatomical localisation of increased uptake identified on planar images, and thus enable differentiation of physiological uptake and artefacts from metastatic uptake, exclude false-positive findings, and confirm true-positive findings and, hence, affect the clinical decision on further therapeutic treatment in this group of patients.



分化型甲狀腺癌患者甲狀腺切除術後使用SPECT/CT 掃描偵測放射性碘 (I-131)的優勢:第二部份:圖像闡釋


本文透過圖像解釋單光子發射電腦斷層攝影/電腦斷層攝影(SPECT/CT)融合顯像如何能改善分化 型甲狀腺癌患者甲狀腺切術除後I-131平面全身顯像的解讀。並會舉例說明SPECT/CT融合圖像如何 讓平面顯像發現的I-131濃聚灶解剖定位更準,從而能將生理性濃聚和偽影與轉移腫瘤的濃聚區分開 來;排除假陽性結果並確定真陽性結果,從而改變醫生的下一步治療策略。