Zhang Xiao-Ming, Mitchell Donald G, Dohke Masako, Holland George A, Parker Laurence
Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA.
Radiology. 2002 May;223(2):547-53. doi: 10.1148/radiol.2232010815.
To evaluate single-shot fast spin-echo (SE) magnetic resonance (MR) imaging for depiction of pancreatic cysts in a large number of patients and to analyze cyst prevalence with respect to patient age and sex and other clinical information.
Single-shot fast SE images of the pancreas were obtained in 1,444 patients. The images were reviewed for presence of pancreatic cysts, which were classified as simple and nonsimple types, and cyst diameters were measured. kappa statistic, Fisher exact, McNemar Q, and Pearson product moment correlation tests were performed.
Two hundred eighty-three (19.6%) patients had at least one pancreatic cyst. The prevalence of pancreatic cysts increased with age (r = 0.96). The percentages of male and female patients with pancreatic cysts (20.4% vs 18.8%) were not significantly different. Two hundred seventy-one (18.8%) patients had simple cysts, and 147 (10.2%) had nonsimple cysts. Of 283 patients with pancreatic cysts, 158 (55.8%) had only one pancreatic cyst. The number of patients with multiple cysts increased with age after 70 years. Four hundred fifteen (83.8%) cysts were 10 mm in diameter or smaller; 56 (11.3%), 11-20 mm in diameter; and 24 (4.9%), 21 mm in diameter or larger. Sixteen (5.7%) patients with pancreatic cysts had malignant pancreatic tumors, and 75 (26.5%) patients had pancreatitis.
The prevalence of pancreatic cysts at single-shot fast SE MR imaging-especially cysts with a diameter smaller than 10 mm-is similar to that of pancreatic cysts at autopsy and higher than that of pancreatic cysts at transabdominal ultrasonography. Prevalence is especially high in patients with pancreatitis.
评估单次激发快速自旋回波（SE）磁共振（MR）成像对大量患者胰腺囊肿的显示情况，并分析囊肿患病率与患者年龄、性别及其他临床信息的关系。
对1444例患者进行了胰腺单次激发快速SE成像。对图像进行回顾，以确定是否存在胰腺囊肿，将其分为单纯性和非单纯性类型，并测量囊肿直径。进行了kappa统计、Fisher精确检验、McNemar Q检验和Pearson积矩相关检验。
283例（19.6%）患者至少有一个胰腺囊肿。胰腺囊肿的患病率随年龄增加（r = 0.96）。男性和女性胰腺囊肿患者的百分比（20.4%对18.8%）无显著差异。271例（18.8%）患者有单纯性囊肿，147例（10.2%）有非单纯性囊肿。在283例胰腺囊肿患者中，158例（55.8%）仅有一个胰腺囊肿。70岁以后，多发囊肿患者的数量随年龄增加。415个（83.8%）囊肿直径小于或等于10 mm；56个（11.3%）直径为11 - 20 mm；24个（4.9%）直径大于或等于21 mm。16例（5.7%）胰腺囊肿患者患有恶性胰腺肿瘤，75例（26.5%）患者患有胰腺炎。
单次激发快速SE MR成像中胰腺囊肿的患病率——尤其是直径小于10 mm的囊肿——与尸检时胰腺囊肿的患病率相似，高于经腹超声检查时胰腺囊肿的患病率。胰腺炎患者的患病率尤其高。
