Wilhelm J L, Zakov Z N, Weinstein M A, Berlin L A, Zegarra H, Gutman F A
Ophthalmic Surg. 1981 Sep;12(9):633-41.
Metallic foreign bodies were localized in seven patients using a modified Delta 2020 scanner. In six of these seven, we compared the localization obtained by sector CT scan with ultrasound. The two methods were found to be complementary, with the sector CT scan giving more positive and more easily interpreted localizations, and ultrasonography giving more detailed soft tissue diagnosis. The new sector CT scanner greatly raised the level of confidence in the localization of metallic foreign bodies; however, we recommend the combined use of both techniques for a complete evaluation.
使用改良的Delta 2020扫描仪对7例患者体内的金属异物进行了定位。在这7例患者中的6例中，我们将扇形CT扫描获得的定位结果与超声检查结果进行了比较。发现这两种方法具有互补性，扇形CT扫描给出的定位结果更肯定且更易于解读，而超声检查则能提供更详细的软组织诊断信息。新型扇形CT扫描仪大大提高了对金属异物定位的信心水平；然而，我们建议联合使用这两种技术以进行全面评估。
