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Article: Intra-patient comparison of reduced-dose model-based iterative reconstruction with standard-dose adaptive statistical iterative reconstruction in the CT diagnosis and follow-up of urolithiasis

TitleIntra-patient comparison of reduced-dose model-based iterative reconstruction with standard-dose adaptive statistical iterative reconstruction in the CT diagnosis and follow-up of urolithiasis
Authors
KeywordsComputed tomography
Kidney
Radiation dosage
Renal colic
Urolithiasis
Issue Date2017
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00330/index.htm
Citation
European Radiology, 2017, 27, p. 4163-4172 How to Cite?
AbstractOBJECTIVES: To evaluate the accuracy of reduced-dose CT scans reconstructed using a new generation of model-based iterative reconstruction (MBIR) in the imaging of urinary tract stone disease, compared with a standard-dose CT using 30% adaptive statistical iterative reconstruction. METHODS: This single-institution prospective study recruited 125 patients presenting either with acute renal colic or for follow-up of known urinary tract stones. They underwent two immediately consecutive scans, one at standard dose settings and one at the lowest dose (highest noise index) the scanner would allow. The reduced-dose scans were reconstructed using both ASIR 30% and MBIR algorithms and reviewed independently by two radiologists. Objective and subjective image quality measures as well as diagnostic data were obtained. RESULTS: The reduced-dose MBIR scan was 100% concordant with the reference standard for the assessment of ureteric stones. It was extremely accurate at identifying calculi of 3 mm and above. The algorithm allowed a dose reduction of 58% without any loss of scan quality. CONCLUSIONS: A reduced-dose CT scan using MBIR is accurate in acute imaging for renal colic symptoms and for urolithiasis follow-up and allows a significant reduction in dose. KEY POINTS: * MBIR allows reduced CT dose with similar diagnostic accuracy * MBIR outperforms ASIR when used for the reconstruction of reduced-dose scans * MBIR can be used to accurately assess stones 3 mm and above.
Persistent Identifierhttp://hdl.handle.net/10722/240235
ISSN
2023 Impact Factor: 4.7
2023 SCImago Journal Rankings: 1.656
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTenant, S-
dc.contributor.authorPang, CL-
dc.contributor.authorDissanayake, P-
dc.contributor.authorVardhanabhuti, V-
dc.contributor.authorStuckey, C-
dc.contributor.authorGutteridge, C-
dc.contributor.authorHyde, C-
dc.contributor.authorRoobottom, C-
dc.date.accessioned2017-04-19T08:21:41Z-
dc.date.available2017-04-19T08:21:41Z-
dc.date.issued2017-
dc.identifier.citationEuropean Radiology, 2017, 27, p. 4163-4172-
dc.identifier.issn0938-7994-
dc.identifier.urihttp://hdl.handle.net/10722/240235-
dc.description.abstractOBJECTIVES: To evaluate the accuracy of reduced-dose CT scans reconstructed using a new generation of model-based iterative reconstruction (MBIR) in the imaging of urinary tract stone disease, compared with a standard-dose CT using 30% adaptive statistical iterative reconstruction. METHODS: This single-institution prospective study recruited 125 patients presenting either with acute renal colic or for follow-up of known urinary tract stones. They underwent two immediately consecutive scans, one at standard dose settings and one at the lowest dose (highest noise index) the scanner would allow. The reduced-dose scans were reconstructed using both ASIR 30% and MBIR algorithms and reviewed independently by two radiologists. Objective and subjective image quality measures as well as diagnostic data were obtained. RESULTS: The reduced-dose MBIR scan was 100% concordant with the reference standard for the assessment of ureteric stones. It was extremely accurate at identifying calculi of 3 mm and above. The algorithm allowed a dose reduction of 58% without any loss of scan quality. CONCLUSIONS: A reduced-dose CT scan using MBIR is accurate in acute imaging for renal colic symptoms and for urolithiasis follow-up and allows a significant reduction in dose. KEY POINTS: * MBIR allows reduced CT dose with similar diagnostic accuracy * MBIR outperforms ASIR when used for the reconstruction of reduced-dose scans * MBIR can be used to accurately assess stones 3 mm and above.-
dc.languageeng-
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00330/index.htm-
dc.relation.ispartofEuropean Radiology-
dc.subjectComputed tomography-
dc.subjectKidney-
dc.subjectRadiation dosage-
dc.subjectRenal colic-
dc.subjectUrolithiasis-
dc.titleIntra-patient comparison of reduced-dose model-based iterative reconstruction with standard-dose adaptive statistical iterative reconstruction in the CT diagnosis and follow-up of urolithiasis-
dc.typeArticle-
dc.identifier.emailVardhanabhuti, V: varv@hku.hk-
dc.identifier.authorityVardhanabhuti, V=rp01900-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00330-017-4783-2-
dc.identifier.scopuseid_2-s2.0-85015007751-
dc.identifier.hkuros272011-
dc.identifier.volume27-
dc.identifier.spage4163-
dc.identifier.epage4172-
dc.identifier.isiWOS:000408952400019-
dc.publisher.placeGermany-
dc.identifier.issnl0938-7994-

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