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Quantitative differential pulmonary perfusion: MR imaging versus radionuclide lung scanning
J M Silverman1, P J Julien, R J Herfkens
1Department of Radiology, Cedars-Sinai Medical Center, Los Angeles, CA 90048.
Radiology
|December 1, 1993
Summary
Magnetic resonance (MR) imaging and radionuclide lung scanning show excellent correlation for assessing pulmonary perfusion in lung transplant candidates. MR imaging offers superior quantitative analysis of absolute pulmonary blood flow compared to relative measurements from radionuclide scans.
Area of Science:
- Radiology
- Cardiovascular Imaging
- Pulmonary Medicine
Background:
- Pulmonary perfusion assessment is crucial for lung transplantation candidacy.
- Differential pulmonary artery blood flow analysis aids in surgical planning.
- Non-invasive imaging modalities are preferred for patient evaluation.
Purpose of the Study:
- To compare quantitative differential pulmonary artery blood flow analysis between phase-contrast cine MR imaging and radionuclide pulmonary perfusion scanning.
- To evaluate the efficacy of MR imaging versus radionuclide scanning in preoperative lung transplantation patients.
Main Methods:
- Prospective quantitative analysis of differential pulmonary artery blood flow in 40 preoperative lung transplantation patients.
- Utilized 1.5 T MR imaging with a phase-contrast cine pulse sequence.
- Compared MR imaging data with radionuclide pulmonary perfusion scanning.
Main Results:
- Excellent correlation (P = .0001) was observed between MR imaging and radionuclide scanning for differential pulmonary perfusion.
- MR imaging allowed for calculation of absolute pulmonary artery blood flow to each lung.
- Radionuclide lung scanning provided only relative perfusion measurements.
Conclusions:
- MR imaging is as effective as radionuclide lung scanning for assessing relative pulmonary perfusion.
- MR imaging is superior to radionuclide lung scanning for determining absolute differential pulmonary perfusion.
- MR imaging provides more comprehensive quantitative data for lung transplant evaluation.