D'Onofrio M, Gallotti A, Martone E, Nicoli L, Mautone S, Ruzzenente A, Mucelli R Pozzi
Department of Radiology, Policlinico Universitario G.B. Rossi, University of Verona, Italy.
J Ultrasound. 2009 Dec;12(4):144-7. doi: 10.1016/j.jus.2009.09.003. Epub 2009 Sep 25.
To evaluate the clinical impact of intraoperative ultrasound (IOUS) in the detection of liver metastases during the years, as compared with those of other imaging modalities.
All IOUS scans performed for detection of liver metastases from 2000 to 2006 were retrospectively reviewed and compared with the results of preoperative imaging modalities: Ultrasound (US), Computed Tomography (CT), and/or Magnetic Resonance (MR). The number of cases in which IOUS and preoperative imaging studies produced discordant results, in terms of presence/absence of focal liver lesions, was calculated per year. Statistical analysis was performed using the McNemar test. A p value < 0.05 was considered statistically significant.
Eighty-three IOUS scans performed in 2000-2003 were reviewed, and discordance with preoperative imaging findings was found in 19/83 (23%) cases. Of the 42 IOUS scans done during the 2004-2006 period, 10/42 (24%) showed discordance with preoperative studies. All metastases diagnosed with imaging studies were pathologically confirmed. The number of discordant cases in the two periods were not significantly different (p = 0.2).
IOUS is still useful in the detection of liver metastases. Its decreased use is probably due to the improved accuracy of preoperative imaging modalities.
评估术中超声（IOUS）在多年来检测肝转移瘤方面的临床影响，并与其他成像方式进行比较。
回顾性分析2000年至2006年期间所有用于检测肝转移瘤的IOUS扫描，并与术前成像方式（超声（US）、计算机断层扫描（CT）和/或磁共振成像（MR））的结果进行比较。每年计算IOUS和术前成像研究在局灶性肝病变的存在与否方面产生不一致结果的病例数。使用McNemar检验进行统计分析。p值<0.05被认为具有统计学意义。
对2000 - 2003年进行的83次IOUS扫描进行了回顾，发现19/83（23%）例与术前成像结果不一致。在2004 - 2006年期间进行的42次IOUS扫描中，10/42（24%）与术前研究结果不一致。所有通过成像研究诊断出的转移瘤均经病理证实。两个时期不一致病例数无显著差异（p = 0.2）。
IOUS在检测肝转移瘤方面仍然有用。其使用减少可能是由于术前成像方式准确性的提高。
