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Paper Abstract and Keywords
Presentation 2009-01-19 14:35
Automatic Lung Nodule Registration in Serial CT Scans
Hyun Hee Jo, Helen Hong (Seoul Women's Univ.), Jin Mo Goo, Chang Min Park (Seoul National Univ. Hospital)
Abstract (in Japanese) (See Japanese page) 
(in English) To identify corresponding pulmonary nodules in serial CT scans for interval change analysis, we propose a multi-stage registration technique. Our method is composed of two main steps. First, Gross translational mismatch is corrected by the coronal and sagittal MIPs-based rigid registration. These MIP images contain a rib structure which has the highest intensity region of the chest. Second, a nodule template in initial CT scans and a search volume in follow-up CT scans are defined respectively. The template matching is performed by searching for the maximum normalized cross-correlation between the nodule template and the candidate search volumes. For fast search, gray thresholding and multi-resolution technique is applied to the search volume. As the experimental results, the hitting rate of sixty nine pulmonary nodules in fifty serial chest CT scans was 98.5% and the total processing time per data was 3.3 seconds on average.
Keyword (in Japanese) (See Japanese page) 
(in English) Computed Tomography / Lung Nodule / Rigid Registration / Coronal and Sagittal Maximum Intensity Projections / Template Matching / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 385, MI2008-69, pp. 49-50, Jan. 2009.
Paper # MI2008-69 
Date of Issue 2009-01-12 (MI) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee MI  
Conference Date 2009-01-19 - 2009-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) National Taiwan University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Imaging 
Paper Information
Registration To MI 
Conference Code 2009-01-MI 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Automatic Lung Nodule Registration in Serial CT Scans 
Sub Title (in English)  
Keyword(1) Computed Tomography  
Keyword(2) Lung Nodule  
Keyword(3) Rigid Registration  
Keyword(4) Coronal and Sagittal Maximum Intensity Projections  
Keyword(5) Template Matching  
1st Author's Name Hyun Hee Jo  
1st Author's Affiliation Seoul Womens University (Seoul Women's Univ.)
2nd Author's Name Helen Hong  
2nd Author's Affiliation Seoul Womens University (Seoul Women's Univ.)
3rd Author's Name Jin Mo Goo  
3rd Author's Affiliation Seoul National University Hospital (Seoul National Univ. Hospital)
4th Author's Name Chang Min Park  
4th Author's Affiliation Seoul National University Hospital (Seoul National Univ. Hospital)
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Date Time 2009-01-19 14:35:00 
Presentation Time 10 
Registration for MI 
Paper # IEICE-MI2008-69 
Volume (vol) IEICE-108 
Number (no) no.385 
Page pp.49-50 
#Pages IEICE-2 
Date of Issue IEICE-MI-2009-01-12 

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