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Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling
Published on: May 30, 2011
A "changing stripe sign" in serial pulmonary perfusion imaging
N Watanabe1, N Oriuchi, H Suzuki
1Department of Nuclear Medicine, Gunma University of School of Medicine, Maebashi, Japan.
Clinical Nuclear Medicine
|February 1, 1996
Summary
The stripe sign on pulmonary perfusion scans usually indicates no pulmonary embolism and remains stable. However, a disappearing stripe sign may suggest acute pulmonary embolism, warranting further investigation.
Area of Science:
- Radiology
- Nuclear Medicine
- Pulmonary Imaging
Background:
- The stripe sign on pulmonary perfusion imaging is a recognized indicator of absent pulmonary embolism in the affected region.
- Typically, this sign is stable across serial imaging studies.
Observation:
- A case study documented a patient exhibiting a stripe sign that resolved on subsequent perfusion imaging.
- This resolution occurred without any concurrent ventilation abnormalities.
Findings:
- A dynamic or "changing stripe sign" was observed, deviating from the expected stability.
- The disappearance of the stripe sign, in this instance, raised suspicion for acute pulmonary embolism.
Implications:
- The findings suggest that a "changing stripe sign" may serve as a novel, albeit preliminary, indicator for acute pulmonary embolism.
- Further research is needed to validate the diagnostic utility of dynamic stripe sign changes in pulmonary embolism detection.
