Human aorta: preliminary results with virtual endoscopy based on three-dimensional MR imaging data sets.
- Davis CP Magnetic Resonance Imaging Center, Department of Radiology, University Hospital, Zürich, Switzerland.
- Ladd ME
- Romanowski BJ
- Wildermuth S
- Knoplioch JF
- Debatin JF
- 1996-04-01
Published in:
- Radiology. - 1996
Adult
Algorithms
Angioscopy
Aorta, Abdominal
Aorta, Thoracic
Aortic Diseases
Contrast Media
Feasibility Studies
Female
Humans
Image Processing, Computer-Assisted
Magnetic Resonance Angiography
Male
Meglumine
Organometallic Compounds
English
PURPOSE
To determine the feasibility of use of magnetic resonance (MR) imaging data sets to perform virtual intraarterial endoscopy (VIE).
MATERIALS AND METHODS
Seven female and 14 male patients (aged 9-86 years [mean, 42 years]) with various pathologic aortic conditions underwent three-dimensional gadolinium-enhanced spoiled gradient-echo MR imaging. With prototype software, VIE postprocessing algorithms (based on ray casting) were applied to the imaging data sets. Findings at conventional angiography were used as the standards of reference.
RESULTS
The vessel wall was seen from the inside in each case, and the following pathologic conditions were depicted clearly: the two lumina in a congenial double aortic arch and the single lumen after correction, vessel narrowing in coarctations, characteristics of Leriche syndrome, stenoses, occlusions, and the true and false lumina of dissections.
CONCLUSIONS
Limitations of VIE include the image quality of the original data set, the threshold chosen to minimize intraluminal artifacts, and the inherent smoothing of vessel walls.
To determine the feasibility of use of magnetic resonance (MR) imaging data sets to perform virtual intraarterial endoscopy (VIE).
MATERIALS AND METHODS
Seven female and 14 male patients (aged 9-86 years [mean, 42 years]) with various pathologic aortic conditions underwent three-dimensional gadolinium-enhanced spoiled gradient-echo MR imaging. With prototype software, VIE postprocessing algorithms (based on ray casting) were applied to the imaging data sets. Findings at conventional angiography were used as the standards of reference.
RESULTS
The vessel wall was seen from the inside in each case, and the following pathologic conditions were depicted clearly: the two lumina in a congenial double aortic arch and the single lumen after correction, vessel narrowing in coarctations, characteristics of Leriche syndrome, stenoses, occlusions, and the true and false lumina of dissections.
CONCLUSIONS
Limitations of VIE include the image quality of the original data set, the threshold chosen to minimize intraluminal artifacts, and the inherent smoothing of vessel walls.
- Language
-
- English
- Open access status
- green
- Identifiers
-
- DOI 10.1148/radiology.199.1.8633169
- PMID 8633169
- Persistent URL
- https://sonar.ch/global/documents/199979
Statistics
Document views: 38
File downloads:
- Full-text: 0