مؤتمر
Quantification of the cerebrospinal fluid from a new whole body MRI sequence
| العنوان: | Quantification of the cerebrospinal fluid from a new whole body MRI sequence |
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| المؤلفون: | Lebret, Alain, Petit, Eric, Durning, Bruno, Hodel, Jérôme, Rahmouni, Alain, Decq, Philippe |
| المساهمون: | Laboratoire Images, Signaux et Systèmes Intelligents (LISSI), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service d'imagerie médicale, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service de neuro-chirurgie, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Bram van Ginneken, Carol L. Novak |
| المصدر: | SPIE Proceedings ; Medical Imaging 2012: Computer-Aided Diagnosis ; https://hal.archives-ouvertes.fr/hal-00813024Test ; Medical Imaging 2012: Computer-Aided Diagnosis, Feb 2012, San Diego, California, United States. pp.83153H-7, ⟨10.1117/12.906964⟩ |
| بيانات النشر: | HAL CCSD International Society for Optics and Photonics |
| سنة النشر: | 2012 |
| المجموعة: | Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| مصطلحات موضوعية: | cerebrospinal fluid, liquide cérébrospinal, hydrocephalus, hydrocéphalie, CSF, LCS, LCR, volume, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV] |
| جغرافية الموضوع: | San Diego, California, United States |
| الوصف: | International audience ; Our work aims to develop a biomechanical model of hydrocephalus both intended to perform clinical research and to assist the neurosurgeon in diagnosis decisions. Recently, we have defined a new MR imaging sequence based on SPACE (Sampling Perfection with Application optimized Contrast using different flip-angle Evolution). On these images, the cerebrospinal fluid (CSF) appears as a homogeneous hypersignal. Therefore such images are suitable for segmentation and for volume assessment of the CSF. In this paper we present a fully automatic 3D segmentation of such SPACE MRI sequences. We choose a topological approach considering that CSF can be modeled as a simply connected object (i.e. a filled sphere). First an initial object which must be strictly included in the CSF and homotopic to a filled sphere, is determined by using a moment-preserving thresholding. Then a priority function based on an Euclidean distance map is computed in order to control the thickening process that adds "simple points" to the initial thresholded object. A point is called simple if its addition or its suppression does not result in change of topology neither for the object, nor for the background. The method is validated by measuring fluid volume of brain phantoms and by comparing our volume assessments on clinical data to those derived from a segmentation controlled by expert physicians. Then we show that a distinction between pathological cases and healthy adult people can be achieved by a linear discriminant analysis on volumes of the ventricular and intracranial subarachnoid spaces. |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| العلاقة: | hal-00813024; https://hal.archives-ouvertes.fr/hal-00813024Test |
| DOI: | 10.1117/12.906964 |
| الإتاحة: | https://doi.org/10.1117/12.906964Test https://hal.archives-ouvertes.fr/hal-00813024Test |
| رقم الانضمام: | edsbas.732A0129 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1117/12.906964 |
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