Clinical Cases in Chronic Thromboembolic Pulmonary Hypertension by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030173661
Publisher: Springer International Publishing

Moreover a ventilation perfusion lung scintigraphy scan showed lack of perfusion to the entire left lung and a wedge defect of the superior segment of the right middle lobe (selected views in Fig. 9.3).

Figure 9.3Ventilation perfusion scintigraphy (RAO: right anterior oblique, Lat: lateral)

After the above preliminary testing she underwent a left heart catheterization to rule out any coronary artery disease prior to possible PTE surgery that was unremarkable. Based on her imaging findings and her clinical history it was suspected that CTEPH was a less likely diagnosis. Therefore, right heart catheterization and digital subtraction pulmonary angiography were deferred and felt to be of excessive risk given the degree of proximal vessel occlusion by CT. As part of her evaluation, she did however undergo a positron emission tomography scan with fusion computed tomography images (Fig. 9.4).

Figure 9.4Fusion PET CT images of the chest (see “Radiographic Interpretation” section for image explanation)

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