Lumbar Spine MRI Dataset

This data set contains anonymised clinical MRI study, or a set of scans, of 515 patients with symptomatic back pains. Each patient data can have one or more MRI studies associated with it. Each study contains slices, i.e., individual images taken from either sagittal or axial view, of the lowest three vertebrae and the lowest three IVDs. The axial view slices are mainly taken from the last three IVDs – including the one between the last vertebrae and the sacrum. The orientation of the slices of the last IVD are made to follow the spine curve whereas those of the other IVDs are usually made in blocks – i.e., parallel to each other. There are between four to five slices per IVD and they begin from the top of the IVD towards its bottom. Many of the top and bottom slices cut through the vertebrae leaving between one to three slices that cut the IVD cleanly and show purely the image of that IVD. In most cases, the total number of slices in axial view ranges from 12 to 15. However, in some cases, there may be up to 20 slices because the study contains slices of more than last three vertebrae. The scans in sagittal view also vary but all contain at least the last seven vertebrae and the sacrum. While the number of vertebrae varies, each scan always includes the first two sacral links. There are a total 48,345 MRI slices in our dataset. The majority of the slices have an image resolution of 320x320 pixels, however, there are slices from three studies with 320x310 pixel resolution. The pixels in all slices have 12-bit per pixel precision which is higher than the standard 8-bit greyscale images. Specifically for all axial-view slices, the slice thickness are uniformly 4 mm with centre-to-centre distance between adjacent slices to be 4.4 mm. The horizontal and vertical pixel spacing is 0.6875 mm uniformly across all axial-view slices. The majority of the MRI studies were taken with the patient in Head-First-Supine position with the rests were taken with the patient in in Feet-First-Supine position. Each study can last between 15 to 45 minutes and a patient may have one or more study associated with them taken at a different time or a few days apart. You can download and read the research papers detailing our methodology on boundary delineation for lumbar spinal stenosis detection using the URLs provided in the Related Links at the end of this page. You can also check out other dataset and source code related to this program from that section. We kindly request you to cite our papers when using our data or program in your research.

本数据集包含515例症状性腰痛患者的匿名化临床磁共振成像（MRI，Magnetic Resonance Imaging）研究或扫描序列。每位患者可关联一项或多项MRI研究。每项研究包含针对最下方三节椎骨及最下方三节椎间盘（Intervertebral Discs，简称IVDs）的断层切片，即分别取自矢状位视图（sagittal view）或轴位视图（axial view）的单幅独立图像。轴位视图断层切片主要取自最后三节椎间盘——包括最后一节椎骨与骶骨之间的椎间盘。最后一节椎间盘的断层切片会贴合脊柱曲度进行采集，而其余椎间盘的断层切片通常采用块状采集模式，即各切片彼此相互平行。每个椎间盘对应4至5幅断层切片，采集顺序从椎间盘顶部延伸至底部。多数顶部与底部切片会穿过椎骨，仅剩余1至3幅切片可清晰完整地显示椎间盘的纯影像。多数情况下，轴位视图的断层切片总数为12至15幅。但部分研究因包含超过最下方三节椎骨的断层切片，切片总数最多可达20幅。矢状位视图的扫描同样存在差异，但所有扫描均至少包含最下方七节椎骨与骶骨。尽管涉及的椎骨数量存在差异，每项扫描始终包含前两节骶骨节段。本数据集总计包含48345幅MRI断层切片。绝大多数断层切片的分辨率为320×320像素，但另有3项研究的断层切片分辨率为320×310像素。所有断层切片的像素精度均为12位，高于标准的8位灰度图像。具体而言，所有轴位视图切片的层厚统一为4mm，相邻切片的中心间距为4.4mm。所有轴位视图切片的水平与垂直像素间距均统一为0.6875mm。绝大多数MRI研究采用头先仰卧位（Head-First-Supine）采集，其余研究采用足先仰卧位（Feet-First-Supine）采集。每项研究的时长为15至45分钟不等，患者可关联一项或多项在不同时间或间隔数日采集的研究。您可通过本页面末尾“相关链接”中提供的URL，下载并阅读详述我们针对腰椎管狭窄症（lumbar spinal stenosis）检测中边界勾勒方法的研究论文。您亦可从该板块获取本项目相关的其他数据集与源代码。若您在研究中使用本数据集或相关程序，请务必引用我们的论文，特此致谢。

搜集汇总

背景与挑战

背景概述

该数据集包含515名背痛患者的腰椎MRI扫描，共48,345个切片，主要用于腰椎管狭窄检测研究。图像多为320x320分辨率，12位灰度精度，包含矢状面和轴向视图。