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CT angiography with spiral CT and maximum intensity projection
S Napel1, M P Marks, G D Rubin
1Radiological Sciences Laboratory, Stanford University School of Medicine, CA 94305-5105.
Radiology
|November 11, 1992
Summary
Computed tomography (CT) angiography offers a new way to visualize blood vessels. This technique shows excellent correlation with conventional angiography, potentially serving as a screening tool.
Area of Science:
- Medical imaging
- Radiology
- Vascular imaging
Background:
- Conventional angiography is the standard for vascular imaging.
- Limitations exist in conventional angiography, necessitating alternative methods.
Purpose of the Study:
- To describe and evaluate a novel computed tomography (CT) angiography technique.
- To assess the utility of CT angiography in visualizing abdominal, cerebral, and carotid arteries.
Main Methods:
- Spiral CT acquisition for image data.
- Three-dimensional reconstruction with bone suppression.
- Maximum intensity projection for vessel visualization.
Main Results:
- Preliminary results in 48 patients demonstrated high accuracy.
- Excellent anatomic correlation with conventional angiography was observed.
- Successful imaging of the abdomen, circle of Willis, and extracranial carotid arteries.
Conclusions:
- CT angiography shows promise as a viable alternative to conventional angiography.
- Further development may establish CT angiography as a screening tool for vascular conditions.