Dipartimento di Radiologia, Ospedale Sacrocuore Don Calabria, Via don A. Sempreboni 5, 37024, Negrar, Italy,
Radiol Med. 2013 Oct;118(7):1082-101. doi: 10.1007/s11547-013-0956-5. Epub 2013 Jul 25.
This study was done to compare the diagnostic accuracy of multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI) in the preoperative assessment of nonfunctioning pancreatic endocrine tumours (NFPET).
Fifty-one patients (25 men, 26 women; mean age, 52 years), preoperatively investigated by both MDCT and MRI and subsequently operated on with a histological diagnosis of NFPET, were included in this study. MDCT and MRI accuracy in evaluating location, size, margins, baseline density/signal intensity, structure, pattern of enhancement, peak enhancement phase, involvement of main pancreatic duct, involvement of adjacent organs, infiltration of peritumoural vessels, involvement of locoregional lymph nodes, and liver metastases was compared using Pearson correlation, Mann-Whitney and chi-square tests. A value of p<0.05 was considered statistically significant.
MDCT and MRI had similar accuracy in assessing size, margins, baseline density/signal intensity, structure, pattern of enhancement, peak enhancement phase, involvement of main pancreatic duct, involvement of adjacent organs, involvement of locoregional lymph nodes, and liver metastases (p>0.05). MDCT was superior to MRI in evaluating the infiltration of peritumoural vessels (p=0.025).
MDCT performed better than MRI in assessing vascular involvement and should be considered the best imaging tool for preoperative evaluation of NFPET.
本研究旨在比较多层螺旋 CT（MDCT）和磁共振成像（MRI）在术前评估无功能性胰腺内分泌肿瘤（NFPET）中的诊断准确性。
本研究纳入了 51 例（25 名男性，26 名女性；平均年龄 52 岁）患者，这些患者术前均同时接受了 MDCT 和 MRI 检查，随后通过组织学诊断为 NFPET 并进行了手术。使用 Pearson 相关分析、Mann-Whitney 和卡方检验比较 MDCT 和 MRI 在评估肿瘤位置、大小、边界、基础密度/信号强度、结构、强化模式、峰值强化期、主胰管受累、毗邻器官受累、肿瘤周围血管浸润、局部淋巴结受累和肝转移方面的准确性。p<0.05 被认为具有统计学意义。
MDCT 和 MRI 在评估肿瘤大小、边界、基础密度/信号强度、结构、强化模式、峰值强化期、主胰管受累、毗邻器官受累、局部淋巴结受累和肝转移方面具有相似的准确性（p>0.05）。MDCT 在评估肿瘤周围血管浸润方面优于 MRI（p=0.025）。
MDCT 在评估血管受累方面优于 MRI，应被视为 NFPET 术前评估的最佳影像学工具。
