An automated method for the detection of pulmonary embolism in V/Q-scans
(2003) In Medical Image Analysis 7(3). p.341-349- Abstract
- In this paper, a fully automatic method for the diagnosis of pulmonary embolism (PE) from V/Q-scans is presented. Image analysis is applied to the ventilation and the perfusion images obtained in the V/Q-scan. The difference of the ventilation and the perfusion is calculated after transformation and hot-spot reduction of the images. From this difference image the integral of the underperfused areas are used as features. With the aid of these features a simple test for PE is devised. The method is evaluated on two sets of patients. One set comprises 102 patients who have undergone both V/Q-scanning and angiography. The performance given as the area under the Receiver Operating Characteristic (ROC) curve is 0.85. Another set is made up by... (More)
- In this paper, a fully automatic method for the diagnosis of pulmonary embolism (PE) from V/Q-scans is presented. Image analysis is applied to the ventilation and the perfusion images obtained in the V/Q-scan. The difference of the ventilation and the perfusion is calculated after transformation and hot-spot reduction of the images. From this difference image the integral of the underperfused areas are used as features. With the aid of these features a simple test for PE is devised. The method is evaluated on two sets of patients. One set comprises 102 patients who have undergone both V/Q-scanning and angiography. The performance given as the area under the Receiver Operating Characteristic (ROC) curve is 0.85. Another set is made up by the 507 consecutive patients examined with V/Q-scanning at Lund University Hospital in Sweden. In this case, the reference was the consensus opinion of two radiologists, the ROC-area is 0.67. A fully automatic and reasonably robust expert system is developed to aid the radiologist in the interpretation of V/Q-scans for PE. (C) 2003 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/300041
- author
- Frigyesi, Attila LU
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- automated method, pulmonary embolism, V/Q-scans
- in
- Medical Image Analysis
- volume
- 7
- issue
- 3
- pages
- 341 - 349
- publisher
- Elsevier
- external identifiers
-
- pmid:12946472
- wos:000185435300009
- scopus:0042827521
- ISSN
- 1361-8415
- DOI
- 10.1016/S1361-8415(03)00030-6
- language
- English
- LU publication?
- yes
- id
- 25545245-9559-4430-a4dd-09f7395c1cbc (old id 300041)
- date added to LUP
- 2016-04-01 12:08:30
- date last changed
- 2022-02-03 18:06:46
@article{25545245-9559-4430-a4dd-09f7395c1cbc, abstract = {{In this paper, a fully automatic method for the diagnosis of pulmonary embolism (PE) from V/Q-scans is presented. Image analysis is applied to the ventilation and the perfusion images obtained in the V/Q-scan. The difference of the ventilation and the perfusion is calculated after transformation and hot-spot reduction of the images. From this difference image the integral of the underperfused areas are used as features. With the aid of these features a simple test for PE is devised. The method is evaluated on two sets of patients. One set comprises 102 patients who have undergone both V/Q-scanning and angiography. The performance given as the area under the Receiver Operating Characteristic (ROC) curve is 0.85. Another set is made up by the 507 consecutive patients examined with V/Q-scanning at Lund University Hospital in Sweden. In this case, the reference was the consensus opinion of two radiologists, the ROC-area is 0.67. A fully automatic and reasonably robust expert system is developed to aid the radiologist in the interpretation of V/Q-scans for PE. (C) 2003 Elsevier B.V. All rights reserved.}}, author = {{Frigyesi, Attila}}, issn = {{1361-8415}}, keywords = {{automated method; pulmonary embolism; V/Q-scans}}, language = {{eng}}, number = {{3}}, pages = {{341--349}}, publisher = {{Elsevier}}, series = {{Medical Image Analysis}}, title = {{An automated method for the detection of pulmonary embolism in V/Q-scans}}, url = {{http://dx.doi.org/10.1016/S1361-8415(03)00030-6}}, doi = {{10.1016/S1361-8415(03)00030-6}}, volume = {{7}}, year = {{2003}}, }