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Volume rendering co...
Volume rendering compared with maximum intensity projection for magnetic resonance angiography measurements of the abdominal aorta
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- Persson, Anders, 1953- (author)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Hälsouniversitetet
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- Dahlström, Nils (author)
- Department of Radiology, Hudiksvall Hospital, Sweden
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- Engellau, Lena (author)
- Lund University,Lunds universitet,Diagnostisk radiologi, Malmö,Forskargrupper vid Lunds universitet,Radiology Diagnostics, Malmö,Lund University Research Groups,Department of Radiology, Lund University, Malmö University Hospital
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- Larsson, Elna-Marie (author)
- Lund University,Lunds universitet,Diagnostisk radiologi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Diagnostic Radiology, (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Department of Radiology, Lund University Hospital
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- Brismar, Torkel B. (author)
- Karolinska Institutet,Center for Surgical Sciences, Division of Radiology, Karolinska Institutet, Stockholm
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- Smedby, Örjan (author)
- Östergötlands Läns Landsting,Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinsk radiologi,Hälsouniversitetet,Röntgenkliniken i Linköping
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(creator_code:org_t)
- 2016-08-30
- 2004
- English.
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In: Acta Radiologica. - : SAGE Publications. - 0284-1851 .- 1600-0455. ; 45:4, s. 453-459
- Related links:
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Abstract
Subject headings
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- Purpose: To compare the volume rendering technique (VRT) with maximum intensity projection (MIP) for aortic diameter measurements in MR angiography (MRA) data sets.Material and Methods: Existing contrast-enhanced 3-dimensional MRA and digital subtraction angiography (DSA) data sets from 20 patients were analyzed. In each MRA data set, two aortic diameters were measured using MIP and VRT. Agreement with DSA measurements, dependence on rendering parameters, and interobserver agreement were assessed.Results: Diameters measured on MIP with fixed parameters showed no significant difference compared with DSA and with freely selected parameters a slight overestimation relative to DSA. Diameters measured on VRT were larger than on DSA. For both MIP and VRT, the measurements depended on the chosen parameters. The error relative to DSA was larger for VRT than for MIP with fixed parameters but not with freely chosen parameters. Interobserver agreement did not differ significantly.Conclusions: VRT is not suitable for diameter measurements of the abdominal aorta with fixed parameter settings but may be useful with user-selected settings.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Keyword
- Abdominal aortic aneurysm AAA
- angiography
- magentic resonance angiography MRA
- maximum intensity projection MIP
- under dependence
- volume rendering technique VRT
- MEDICINE
- MEDICIN
- angiography (MRA)
- magnetic resonance
- abdominal aortic aneurysm (AAA)
- angiography
- maximum intensity projection (MIP)
- user dependence
- volume rendering technique (VRT)
Publication and Content Type
- ref (subject category)
- art (subject category)
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