Retrograde lung scanning

Inhalation Lung Scanning Evaluation

The routine study of regional ventilation of the lungs has been hampered by the lack of safe, simple and accurate methods. Radioisotope techniques have made possible the development of such methods. Two varieties of radioactive scanning have been used: radiolabelled particulate material, and radioactive inert gases. We have performed scans using both inhaled technetium-99m albuminate particles ...

Retrograde amalgam filling: a scanning electron microscopic study.

Lung scanning in bronchial carcinoma.

tion of the heart, and particularly of the right ventricle, when the heart is in its correct central position. If during intra-uterine life the heart is not central and during development lies to the left side, leaving the mediastinum empty, there will be no positive force to elevate the sternum, but rather a negative pressure which will suck it in. The ribs and sternum ossify early, but the co...

Evaluation of the reimplanted lung by lung scanning in dogs.

Eighteen dogs who survived left lung reimplantation were submitted to repeated lung scans at intervals up to six months postoperation. In five dogs the scans were normal or near normal. The reimplanted lungs in these animals appeared grossly normal and the pulmonary angiogram and microscopic appearance were also normal. The lung scans in eight dogs had diminished perfusion of the left upper lob...

Lung scanning in carcinoma of the bronchus.

The lung scans of 101 patients with carcinoma of the bronchus have been compared with the bronchoscopic and radiographic findings. As the tumour approaches the hilum as judged by bronchoscopy or the chest radiograph the relative perfusion of the affected lung decreases. When the relative perfusion of the affected lung is less than one third of the total the tumour is likely to be inoperable. Th...