SPECT/CT with ^99mTc-DTPA in a Patient with Persistent Complex Pneumothorax after Endobronchial Valve Placement

Area of Science:

• Nuclear medicine
• Radiology
• Pulmonary imaging

Background:

• Ventilation-perfusion (V/Q) SPECT/CT with technetium 99m-diethylenetriaminepentaacetic acid (DTPA) is established for diagnosing cardiopulmonary diseases.
• Chronic obstructive pulmonary disease (COPD) management can involve interventions like endobronchial valve placement, which may lead to complications.

Observation:

• A case study involving a patient with severe COPD and persistent complex pneumothorax after endobronchial valve placement is presented.
• The diagnostic challenge was to identify the cause of the refractory pneumothorax in this complex clinical scenario.

Findings:

• SPECT/CT utilizing ^99mTc-DTPA ventilation imaging successfully identified the underlying cause of the persistent complex pneumothorax.
• The imaging provided crucial insights into the thoracic pathology, guiding further management decisions.

Implications:

• This case highlights the significant utility of V/Q SPECT/CT with ^99mTc-DTPA in evaluating complex thoracic complications, particularly in patients with severe lung disease.
• The findings underscore the value of advanced SPECT/CT techniques for diagnosing and managing challenging pulmonary conditions and their sequelae.