Lassau N, Spatz A, Avril M F, Tardivon A, Margulis A, Mamelle G, Vanel D, Leclere J
Department of Medical Imaging, Institut Gustave Roussy, Villejuif, France.
Radiographics. 1997 Nov-Dec;17(6):1559-65. doi: 10.1148/radiographics.17.6.9397463.
The purpose of this study was to evaluate the accuracy of high-frequency ultrasound (US) in the preoperative assessment of skin tumors. A US scanner with a 20-MHz probe was used to visualize and evaluate 70 skin lesions (38 clinically suspected melanomas and 32 suspected basilar cell carcinomas [BCCs]) before surgical resection. A US morphologic study and a Doppler analysis of vascularity were performed for each tumor. Of the 70 tumors, 62 were clearly visualized, including 19 melanomas, 12 nonmalignant nevi, and 31 BCCs. Most lesions were hypoechoic. In 13 of 19 proved melanomas, the difference between the histologic and US measurements was equal to or less than 0.2 mm. Vessels were visualized in melanomas with thicknesses greater than 3 mm. All BCCs were visualized, and in 29% of cases of BCC, tumor size at US was greater than that at clinical examination. High-frequency, high-resolution US is a simple, reliable, noninvasive method for accurate preoperative assessment of skin tumor dimensions. This technique allows surgical planning to be adapted and reexcision to be avoided. However, its role is limited in the differential diagnosis of malignant and benign skin lesions.
本研究的目的是评估高频超声（US）在皮肤肿瘤术前评估中的准确性。使用配备20MHz探头的超声扫描仪在手术切除前对70例皮肤病变（38例临床疑似黑色素瘤和32例疑似基底细胞癌[BCC]）进行可视化和评估。对每个肿瘤进行超声形态学研究和血管多普勒分析。70个肿瘤中，62个清晰可见，包括19个黑色素瘤、12个非恶性痣和31个基底细胞癌。大多数病变为低回声。在19例经证实的黑色素瘤中，有13例组织学测量值与超声测量值之间的差异等于或小于0.2mm。厚度大于3mm的黑色素瘤中可见血管。所有基底细胞癌均可见，在29%的基底细胞癌病例中，超声显示的肿瘤大小大于临床检查时的大小。高频、高分辨率超声是一种简单、可靠、无创的方法，可用于准确术前评估皮肤肿瘤大小。该技术有助于调整手术计划并避免再次切除。然而，其在皮肤恶性和良性病变的鉴别诊断中的作用有限。
