Extraction of membrane structure in eyeball from MR volumes

Masahiro Oda; Taichi Kin; Kensaku Mori

doi:10.1117/12.2254095

13 March 2017 Extraction of membrane structure in eyeball from MR volumes

Masahiro Oda, Taichi Kin, Kensaku Mori

Proceedings Volume 10137, Medical Imaging 2017: Biomedical Applications in Molecular, Structural, and Functional Imaging; 101371S (2017) https://doi.org/10.1117/12.2254095
Event: SPIE Medical Imaging, 2017, Orlando, Florida, United States

Abstract

This paper presents an accurate extraction method of spherical shaped membrane structures in the eyeball from MR volumes. In ophthalmic surgery, operation field is limited to a small region. Patient specific surgical simulation is useful to reduce complications. Understanding of tissue structure in the eyeball of a patient is required to achieve patient specific surgical simulations. Previous extraction methods of tissue structure in the eyeball use optical coherence tomography (OCT) images. Although OCT images have high resolution, imaging regions are limited to very small. Global structure extraction of the eyeball is difficult from OCT images. We propose an extraction method of spherical shaped membrane structures including the sclerotic coat, choroid, and retina. This method is applied to a T2 weighted MR volume of the head region. MR volume can capture tissue structure of whole eyeball. Because we use MR volumes, out method extracts whole membrane structures in the eyeball. We roughly extract membrane structures by applying a sheet structure enhancement filter. The rough extraction result includes parts of the membrane structures. Then, we apply the Hough transform to extract a sphere structure from the voxels set of the rough extraction result. The Hough transform finds a sphere structure from the rough extraction result. An experimental result using a T2 weighted MR volume of the head region showed that the proposed method can extract spherical shaped membrane structures accurately.

Citation Download Citation

Masahiro Oda, Taichi Kin, and Kensaku Mori "Extraction of membrane structure in eyeball from MR volumes", Proc. SPIE 10137, Medical Imaging 2017: Biomedical Applications in Molecular, Structural, and Functional Imaging, 101371S (13 March 2017); https://doi.org/10.1117/12.2254095

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KEYWORDS

Optical coherence tomography

Retina

Hough transforms

Surgery

Tissues

Digital filtering

Head

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