EXERCISE VENTILATION PERFUSION SCAN WITH SINGLE PHOTON EMISSION CT TO ASSESS TARGET LOBE FOR ENDOBRONCHIAL VALVE PLACEMENT

Spurious lung perfusion ventilation defect on planar ventilation-perfusion scan detected by SPECT imaging

Pulmonary embolism (PE) is a preventable cause of morbidity and mortality which needs prompt recognition. Ventilation-perfusion (V/Q) scan is a well-established diagnostic test for evaluation of suspected PE. We report a 32-year-old woman with history of rheumatologic disease and acute dyspnea, who was referred for V/Q scintigraphy. The planar images revealed multiple mismatched defects through...

Endobronchial valve placement for intractable airleaks

Background/Introduction Prolonged alveolo-pleural and broncho-pleural airleaks can be vexing problems for Thoracic Surgeons and arise after pulmonary procedures or spontaneously: often in the setting of underlying lung disease or infection. Patients with debilitation, HIV infection, end stage lung disease or following lung transplantation may be poor candidates for surgical intervention. Bronch...

Brain single-photon emission CT physics principles.

The basic principles of scintigraphy are reviewed and extended to 3D imaging. Single-photon emission computed tomography (SPECT) is a sensitive and specific 3D technique to monitor in vivo functional processes in both clinical and preclinical studies. SPECT/CT systems are becoming increasingly common and can provide accurately registered anatomic information as well. In general, SPECT is affect...

Impact of ventilation/perfusion single-photon emission computed tomography on treatment duration of pulmonary embolism

PURPOSE The aim of the study was to establish whether the duration of anticoagulant (AC) therapy can be tailored, on an objective basis, by using ventilation/perfusion single-photon emission computed tomography (V/P SPECT) and to assess the extent of residual perfusion defects over time. In particular, we addressed the following: (a) is the extent of perfusion recovery at 3 months of initial pu...

Ventilation Perfusion Single Photon Emission Tomography (V/Q SPECT) in the Diagnosis of Pulmonary Embolism