Data From Pancreas-CT

The National Institutes of Health Clinical Center performed 82 abdominal contrast enhanced 3D CT scans (~70 seconds after intravenous contrast injection in portal-venous) from 53 male and 27 female subjects. Seventeen of the subjects are healthy kidney donors scanned prior to nephrectomy. The remaining 65 patients were selected by a radiologist from patients who neither had major abdominal pathologies nor pancreatic cancer lesions. Subjects' ages range from 18 to 76 years with a mean age of 46.8 ± 16.7. The CT scans have resolutions of 512x512 pixels with varying pixel sizes and slice thickness between 1.5 − 2.5 mm, acquired on Philips and Siemens MDCT scanners (120 kVp tube voltage). A medical student manually performed slice-by-slice segmentations of the pancreas as ground-truth and these were verified/modified by an experienced radiologist.

美国国立卫生研究院临床中心（National Institutes of Health Clinical Center）从53名男性与27名女性受试者中采集了82例腹部增强三维CT扫描数据，所有扫描均于静脉注射对比剂后门静脉期（约注射后70秒）完成。其中17名受试者为健康肾脏捐献者，于肾切除术术前接受扫描。剩余65名患者由放射科医师从既无重大腹部病变、也未检出胰腺癌病灶的患者中筛选得到。受试者年龄范围为18至76岁，平均年龄为46.8±16.7岁。本次CT扫描的分辨率均为512×512像素，像素尺寸存在差异，层厚介于1.5−2.5 mm之间，扫描设备为飞利浦（Philips）及西门子（Siemens）的多层螺旋CT（MDCT）扫描仪，管电压设置为120 kVp。一名医学生逐层手动分割胰腺区域作为标注真值（ground-truth），后续由经验丰富的放射科医师对分割结果进行审核与修正。