𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A pyramidal approach for automatic segmentation of multiple sclerosis lesions in brain MRI

✍ Scribed by C. Pachai; Y.M. Zhu; J. Grimaud; M. Hermier; A. Dromigny-Badin; A. Boudraa; G. Gimenez; C. Confavreux; J.C. Froment

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
631 KB
Volume
22
Category
Article
ISSN
0895-6111

No coin nor oath required. For personal study only.

✦ Synopsis

Quantitative assessment of Magnetic Resonance Imaging (MRI) lesion load of patients with multiple sclerosis (MS) is the most objective approach for a better understanding of the history of the pathology, either natural or modi®ed by therapies. To achieve an accurate and reproducible quanti®cation of MS lesions in conventional brain MRI, an automatic segmentation algorithm based on a multiresolution approach using pyramidal data structures is proposed. The systematic pyramidal decomposition in the frequency domain provides a robust and ¯exible low level tool for MR image analysis. Context-dependent rules regarding MRI ®ndings in MS are used as high level considerations for automatic lesion detection.

📜 SIMILAR VOLUMES

Automatic segmentation of gadolinium-enh
Automatic segmentation of gadolinium-enhanced multiple sclerosis lesions
✍ Barry J. Bedell; Ponnada A. Narayana 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 735 KB

## Abstract Automatic detection and quantitation of contrast‐enhanced lesions on MRI is expected to be useful in characterizing the disease state in multiple sclerosis (MS). The enhancing structures such as cerebral vasculature and regions with no blood‐brain barrier complicate automated analysis o

Segmentation of gadolinium-enhanced lesi
Segmentation of gadolinium-enhanced lesions on MRI in multiple sclerosis
✍ Sushmita Datta; Balasrinivasa Rao Sajja; Renjie He; Rakesh K. Gupta; Jerry S. Wo 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 307 KB

## Abstract ## Purpose To develop and implement a method for identification and quantification of gadolinium (Gd) enhancements with minimal human intervention. ## Materials and Methods Dual fast spin echo (FSE), fluid attenuation inversion recovery (FLAIR), and pre‐ and postcontrast T1‐weighted

Dual-temporal resolution dynamic contras
Dual-temporal resolution dynamic contrast-enhanced MRI protocol for blood–brain barrier permeability measurement in enhancing multiple sclerosis lesions
✍ I.O. Jelescu; I.R. Leppert; S. Narayanan; D. Araújo; D.L. Arnold; G.B. Pike 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 701 KB

## Abstract ## Purpose: To design a more accurate and reproducible technique for the measurement of blood–brain barrier (BBB) permeability in gadolinium‐enhancing multiple sclerosis (MS) lesions. ## Materials and Methods: Four MS patients were scanned using a new dynamic contrast‐enhanced (DCE)‐

A method of radio-frequency inhomogeneit
A method of radio-frequency inhomogeneity correction for brain tissue segmentation in MRI
✍ L.Q. Zhou; Y.M. Zhu; C. Bergot; A.-M. Laval-Jeantet; V. Bousson; J.-D. Laredo; M 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 433 KB

An automatic method of correcting radio-frequency (RF) inhomogeneity in magnetic resonance images is presented. The method considers that image intensity variation due to radio-frequency inhomogeneity contains not only low frequency components, but also high frequency components. The variation is re