Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI.
PURPOSE: Vessel-encoded (VE) pseudo-continuous arterial spin labeling (p-CASL) is a territorial ASL (T-ASL) technique to identify the perfusion territories of cerebral arteries. The aim of this study was to validate the output of three Vessel-encoded p-CASL image processing methods, k-means clusteri...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
John Wiley and Sons Inc.
2014
|
| _version_ | 1826258830511570944 |
|---|---|
| author | Hartkamp, N Helle, M Chappell, M Okell, T Hendrikse, J Bokkers, R van Osch, M |
| author_facet | Hartkamp, N Helle, M Chappell, M Okell, T Hendrikse, J Bokkers, R van Osch, M |
| author_sort | Hartkamp, N |
| collection | OXFORD |
| description | PURPOSE: Vessel-encoded (VE) pseudo-continuous arterial spin labeling (p-CASL) is a territorial ASL (T-ASL) technique to identify the perfusion territories of cerebral arteries. The aim of this study was to validate the output of three Vessel-encoded p-CASL image processing methods, k-means clustering with and without subsequent linear analysis and a Bayesian framework, by comparison with the perfusion maps acquired with super-selective p-CASL. METHODS: The comparison was done quantitatively using the Hausdorff distance and Dice similarity coefficient in the territories of the right and left internal carotid arteries, the basilar artery, and the right and left vertebral arteries. A qualitative comparison was done in the areas of the anterior and posterior circulation, and the deep gray matter. RESULTS: The overall agreement between the Vessel-encoded p-CASL image processing methods and super-selective p-CASL was good; with the difference that the linear analysis and the Bayesian framework were able to detect mixed perfusion. CONCLUSION: Planning-free Vessel-encoded p-CASL with k-means clustering appears suitable as a general purpose T-ASL strategy, but to determine mixed perfusion a combination with linear analysis, or the Bayesian framework is preferable, which are superior in this regard. To accurately determine the perfusion territory of a single vessel, super-selective p-CASL is still recommended. |
| first_indexed | 2024-03-06T18:40:12Z |
| format | Journal article |
| id | oxford-uuid:0c9d0c11-c8a9-46c7-a720-f362673f452a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:40:12Z |
| publishDate | 2014 |
| publisher | John Wiley and Sons Inc. |
| record_format | dspace |
| spelling | oxford-uuid:0c9d0c11-c8a9-46c7-a720-f362673f452a2022-03-26T09:36:00ZValidation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0c9d0c11-c8a9-46c7-a720-f362673f452aEnglishSymplectic Elements at OxfordJohn Wiley and Sons Inc.2014Hartkamp, NHelle, MChappell, MOkell, THendrikse, JBokkers, Rvan Osch, MPURPOSE: Vessel-encoded (VE) pseudo-continuous arterial spin labeling (p-CASL) is a territorial ASL (T-ASL) technique to identify the perfusion territories of cerebral arteries. The aim of this study was to validate the output of three Vessel-encoded p-CASL image processing methods, k-means clustering with and without subsequent linear analysis and a Bayesian framework, by comparison with the perfusion maps acquired with super-selective p-CASL. METHODS: The comparison was done quantitatively using the Hausdorff distance and Dice similarity coefficient in the territories of the right and left internal carotid arteries, the basilar artery, and the right and left vertebral arteries. A qualitative comparison was done in the areas of the anterior and posterior circulation, and the deep gray matter. RESULTS: The overall agreement between the Vessel-encoded p-CASL image processing methods and super-selective p-CASL was good; with the difference that the linear analysis and the Bayesian framework were able to detect mixed perfusion. CONCLUSION: Planning-free Vessel-encoded p-CASL with k-means clustering appears suitable as a general purpose T-ASL strategy, but to determine mixed perfusion a combination with linear analysis, or the Bayesian framework is preferable, which are superior in this regard. To accurately determine the perfusion territory of a single vessel, super-selective p-CASL is still recommended. |
| spellingShingle | Hartkamp, N Helle, M Chappell, M Okell, T Hendrikse, J Bokkers, R van Osch, M Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI. |
| title | Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI. |
| title_full | Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI. |
| title_fullStr | Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI. |
| title_full_unstemmed | Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI. |
| title_short | Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI. |
| title_sort | validation of planning free vessel encoded pseudo continuous arterial spin labeling mr imaging as territorial asl strategy by comparison to super selective p casl mri |
| work_keys_str_mv | AT hartkampn validationofplanningfreevesselencodedpseudocontinuousarterialspinlabelingmrimagingasterritorialaslstrategybycomparisontosuperselectivepcaslmri AT hellem validationofplanningfreevesselencodedpseudocontinuousarterialspinlabelingmrimagingasterritorialaslstrategybycomparisontosuperselectivepcaslmri AT chappellm validationofplanningfreevesselencodedpseudocontinuousarterialspinlabelingmrimagingasterritorialaslstrategybycomparisontosuperselectivepcaslmri AT okellt validationofplanningfreevesselencodedpseudocontinuousarterialspinlabelingmrimagingasterritorialaslstrategybycomparisontosuperselectivepcaslmri AT hendriksej validationofplanningfreevesselencodedpseudocontinuousarterialspinlabelingmrimagingasterritorialaslstrategybycomparisontosuperselectivepcaslmri AT bokkersr validationofplanningfreevesselencodedpseudocontinuousarterialspinlabelingmrimagingasterritorialaslstrategybycomparisontosuperselectivepcaslmri AT vanoschm validationofplanningfreevesselencodedpseudocontinuousarterialspinlabelingmrimagingasterritorialaslstrategybycomparisontosuperselectivepcaslmri |