Matched ventilation-perfusion becomes mismatched ventilation-perfusion lung imaging after resolution of carcinoma of the bronchus
| Autor: | Wei-Jen Shih, Dillon Ml |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Male
medicine.medical_specialty Lung Neoplasms Hypertension Pulmonary Ventilation/perfusion ratio Constriction Main Bronchus Carcinoma Non-Small-Cell Lung Occlusion medicine Ventilation-Perfusion Ratio Humans Radiology Nuclear Medicine and imaging Radionuclide Imaging Lung Technetium Tc 99m Aggregated Albumin Aged Bronchus business.industry Respiratory disease General Medicine respiratory system Hypoxia (medical) medicine.disease respiratory tract diseases medicine.anatomical_structure Carcinoma Squamous Cell Radiology medicine.symptom business Perfusion Xenon Radioisotopes |
| Zdroj: | Clinical nuclear medicine. 19(4) |
| ISSN: | 0363-9762 |
| Popis: | Airway occlusion results in regional alveolar hypoxia followed by reflex hypoxic pulmonary arterial constriction. Ventilation-perfusion imaging demonstrates matched defects. In the two patients reported, occlusion of the main bronchus by bronchogenic carcinoma was resolved--in one case by radiation therapy, and in the other by removal of the tumor mass in the bronchus by bronchial slitted biopsy. The initially matched ventilation-perfusion findings became mismatched. While ventilation was presumed to be normal, pulmonary perfusion was not completely reversed. |
| Databáze: | OpenAIRE |
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