Pistolese C A, Ciarrapico A M, Della Gatta F, Perretta T, Cossu E, Bolacchi F, Bonanno E, Simonetti G
Imaging Diagnostics, Molecular Imaging, Interventional Radiology, and Radiation Therapy Department, University "Tor Vergata" (PTV), Rome, Italy.
Radiol Med. 2009 Aug;114(5):743-56. doi: 10.1007/s11547-009-0404-8. Epub 2009 May 30.
This study was undertaken to compare the cost effectiveness of two vacuum-assisted breast biopsy devices, the Mammotome and Vacora systems.
Between January and June 2006, 238 vacuum-assisted breast biopsies were performed at our radiology department. Five out of 238 lesions were excluded because of inadequate sampling. The Mammotome system was used in 108/233 lesions and the Vacora system in 125/233. Fifty-eight lesions underwent ultrasound-guided breast biopsy, and 50 lesions underwent mammography-guided biopsy with both Mammotome and Vacora devices. Magnetic-resonance-guided biopsy was possible with the Vacora system only (17/125 lesions).
All procedures were successfully completed. No significant differences were found between the results of the Mammotome and Vacora biopsies in terms of effectiveness: sensitivity was 84.4% and 86.2%, respectively, and specificity 100%. In terms of cost, the Mammotome system has higher costs per procedure compared with the Vacora.
Our clinical results confirm the diagnostic accuracy of both the Mammotome and Vacora systems, whereas our cost analysis shows that there is a considerable difference, mostly related to the initial investment.
本研究旨在比较两种真空辅助乳腺活检设备——麦默通（Mammotome）系统和瓦科拉（Vacora）系统的成本效益。
2006年1月至6月期间，我们放射科进行了238例真空辅助乳腺活检。238个病变中有5个因取样不足被排除。108/233个病变使用了麦默通系统，125/233个病变使用了瓦科拉系统。58个病变接受了超声引导下的乳腺活检，50个病变接受了麦默通和瓦科拉设备的乳腺X线摄影引导活检。仅瓦科拉系统可进行磁共振引导活检（17/125个病变）。
所有操作均成功完成。麦默通活检和瓦科拉活检的结果在有效性方面无显著差异：敏感性分别为84.4%和86.2%，特异性为100%。在成本方面，与瓦科拉相比，麦默通系统每次操作的成本更高。
我们的临床结果证实了麦默通系统和瓦科拉系统的诊断准确性，而我们的成本分析表明存在相当大的差异，主要与初始投资有关。
