Three-dimensional x-ray imaging of the anatomy and function of the lungs and pulmonary arteries in dogs following single lung transplant

Qing-Hua Wu M.D.; Christopher G. A. McGregor M.D.; Xue-Si Wu M.D.; Mauro Rinaldi M.D.; Folke N. Nilsson M.D.; Henry D. Tazelaar M.D.; Erik Leo Ritman M.D.

doi:10.1117/12.237897

8 April 1996 Three-dimensional x-ray imaging of the anatomy and function of the lungs and pulmonary arteries in dogs following single lung transplant

Qing-Hua Wu M.D., Christopher G. A. McGregor M.D., Xue-Si Wu M.D., Mauro Rinaldi M.D., Folke N. Nilsson M.D., Henry D. Tazelaar M.D., Erik Leo Ritman M.D.

Author Affiliations +

Proceedings Volume 2709, Medical Imaging 1996: Physiology and Function from Multidimensional Images; (1996) https://doi.org/10.1117/12.237897
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

Abstract

It was the goal of this study to see if relatively noninvasive CT studies could provide a quantitative index of acute lung rejection in single lung transplantation. Using volume scanning fast CT, the change in cross-sectional area of the major pulmonary arteries from systole to diastole, regional lung perfusion and ventilation was measured in 12 dogs with left lung allotransplantation before and during rejection and four dogs with left lung autotransplantation. All dogs were anesthetized and scanned in a fast computed tomography scanner (dynamic spatial reconstructor--DSR) during several ventilatory cycles and again during injection of contrast medium into the right atrium. There was significant reduction of regional air content, ventilation, perfusion and pulmonary artery compliance during rejection of the transplanted lung. The severity of these changes related linearly with the histological indices of rejection. It is concluded that minimally invasive dynamic CT imaging of transplanted lung can be used to detect acute rejection and its severity.

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Qing-Hua Wu M.D., Christopher G. A. McGregor M.D., Xue-Si Wu M.D., Mauro Rinaldi M.D., Folke N. Nilsson M.D., Henry D. Tazelaar M.D., and Erik Leo Ritman M.D. "Three-dimensional x-ray imaging of the anatomy and function of the lungs and pulmonary arteries in dogs following single lung transplant", Proc. SPIE 2709, Medical Imaging 1996: Physiology and Function from Multidimensional Images, (8 April 1996); https://doi.org/10.1117/12.237897

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KEYWORDS

Lung

Arteries

Transplantation

Computed tomography

Scanners

Heart

X-ray computed tomography

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