Method for automatically detecting and positioning posterior superior iliac spine based on CT (Computed Tomography) image

Abstract

The invention belongs to the technical field of image processing, and particularly discloses a posterior superior iliac spine automatic detection and positioning method based on a CT (Computed Tomography) image, which comprises the following steps: firstly, acquiring a human CT sequence image, performing denoising and enhancement, and then removing a CT examination couch in the human CT sequence image by graphic operation; according to medical digital imaging and communication DICOM information, positioning a search range to CT sequence data of the lower half part of the human trunk to acquire a CT sequence image of the lower half part of the human trunk; searching and locking a pelvis region in the CT sequence image of the lower half part of the human trunk to obtain a pelvis region CT sequence image; and searching and positioning feature points of the left posterior superior spine and the right posterior superior spine in the pelvis region CT sequence image. The position of the posterior superior spine of iliac can be automatically and rapidly detected and accurately calibrated, computer-assisted medical image automatic analysis and making of an operation scheme for a patient by a doctor are facilitated, operations such as automatic registration and positioning can be greatly improved, and the workload of the doctor is effectively relieved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an automatic detection and positioning method for the posterior superior iliac spine based on CT images. Background technique [0002] Identification of bony landmarks is an essential step in orthopedics, biomechanics or morphometry. Identification of bony landmarks is often applied in preoperative planning and intraoperative navigation of patients, scaling of musculoskeletal models, or statistical analysis of bone morphology. The posterior superior iliac spine is a landmark structure on the pelvis, located on both sides of the back of the human pelvis, at the junction with the soft tissues around the human lumbar spine. The posterior superior iliac spine can be detected by palpation, but this manual method of identification is time-consuming and requires extensive experience on the part of the physician. [0003] In recent years, medical imaging technology has develop...

AI Technical Summary

Problems solved by technology

Due to interference such as noise, the imaging of CT images is not clear, and the structure of the abdomen and pelvis of the human body is complicated. These problems make it more difficult for doctors to detect and locate the posterior superior iliac spine only by observing CT images.

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