Inlämning av Examensarbete / Submission of Thesis

Babak Ghafary Asl , pp. 57. ING/School of Engineering, 2012.

The work

Författare / Author: Babak Ghafary Asl
babak.kth@gmail.com
Titel / Title: A Computer Aided Detection System for Cerebral Microbleeds in Brain MRI
Översatt titel / Translated title: A Computer Aided Detection System for Cerebral Microbleeds in Brain MRI
Abstrakt Abstract:

Advances in MR technology have improved the potential for visualization of small lesions in brain images. This has resulted in the opportunity to detect cerebral microbleeds (CMBs), small hemorrhages in the brain that are known to be associated with risk of ischemic stroke and intracerebral bleeding. Currently, no computerized method is available for fully- or semi-automated detection of CMBs.
In this paper, we propose a CAD system for the detection of CMBs to speed up visual analysis in population-based studies. Our method consists
of three steps: (i) skull-stripping (ii) initial candidate selection (iii) reduction of false-positives using a two layer classi cation and (iv) determining the anatomical location of CMBs. The training and test sets consist of 156 subjects (448 CMBs) and 81 subjects (183 CMBs), respectively. The geometrical, intensity-based and local image descriptor features were used in the classi cation steps. The training and test sets consist of 156 subjects (448 CMBs) and 81 subjects (183 CMBs), respectively. The sensitivity for
CMB detection was 90% with, on average, 4 false-positives per subject.

Ämnesord / Subject: Signalbehandling - Signal Processing
Datavetenskap - Computer Science\Artificial Intelligence
Nyckelord / Keywords: Brain MRI, cerebral microbleeds, classi cation, computer aided diagnosis.

Publication info

Dokument id / Document id: houn-8rqg3m
Program:/ Programme Magisterprogram i Elektroteknik / Master of Science in Electrical Engineering
Registreringsdatum / Date of registration: 02/22/2012
Uppsatstyp / Type of thesis: Magisterarbete/Master's Thesis (60 credits)

Context

Handledare / Supervisor: Marleen de Bruijne
Examinator / Examiner: Wlodek J. Kulesza
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00
I samarbete med / In co-operation with: Erasmus Rotterdam Medical Center

Files & Access

Bifogad uppsats fil(er) / Files attached: bth2012babak.pdf (2695 kB, öppnas i nytt fönster)