Lung Perfusion SPECT: Application in a Patient With Tetralogy of Fallot and Suspected Pulmonary Thromboemboli
| Author | Mina Ranji Amjad | en |
| Author | Mehrshad Abbasi | en |
| Author | Saeed Farzanehfar | en |
| Issued Date | 2015-04-01 | en |
| Abstract | A 22-year-old woman presented with acute left-sided pleuritic chest pain and dyspnea 6 days after surgery for revision of the stenotic central aortopulmonary shunt. She had a history of tetralogy of Fallot (TOF), pulmonary valve stenosis, ventricular septal defect and major aortopulmonary collateral artery. Her Waterston shunt was placed when she was 5 years old and stented and re-dilated after stenosis. Acute pulmonary thromboemboli (PTE) was suspected and pulmonary perfusion scan was performed with 4 mCi 99m Technetium labeled macroaggregated albumin. The left lung was globally hypoperfused with evident uptake in the brain, renal parenchyma and thyroid. SPECT images revealed a segmental wedge-shaped peripheral defect in the posterior segment of the left upper lobe. The scan was interpreted as acute/chronic PTE or vascular abnormality. CT angiography excluded PTE; nevertheless the patient was treated with a therapeutic dose of heparin changed to warfarin and was discharged with improvement of the symptoms. Pulmonary artery angiography was not performed. | en |
| DOI | https://doi.org/10.5812/iranjradiol.9086 | en |
| Keyword | Tomography | en |
| Keyword | Emission-Computed | en |
| Keyword | Single-Photon | en |
| Keyword | Tetralogy of Fallot | en |
| Keyword | Pulmonary Embolism | en |
| Publisher | Brieflands | en |
| Title | Lung Perfusion SPECT: Application in a Patient With Tetralogy of Fallot and Suspected Pulmonary Thromboemboli | en |
| Type | Case Report | en |
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