Key result
Multidetector CT is an effective first-line imaging modality for pre-procedural mapping of normal and variant pulmonary venous anatomy prior to cardiothoracic surgeries and catheter ablation.
Why the study?
Variant pulmonary venous anatomy is clinically important for pre-procedural planning prior to cardiothoracic surgeries and radiofrequency catheter-directed ablation for pulmonary vein isolation.
Knowledge of normal and variant pulmonary venous anatomy on MDCT is crucial for radiologists to assist in pre-procedural planning for cardiothoracic surgeries and atrial fibrillation ablation.
Variations in pulmonary venous anatomy (in the absence of any anomalous pulmonary venous connections) is not uncommon. Commonly occurring variations include presence of conjoined pulmonary veins (PV), supernumerary PVs and ostial PVs. Variant PV anatomy is often asymptomatic; however, it may assume importance in the pre-procedural planning prior to cardiothoracic surgeries and radiofrequency catheter-directed ablation for PV isolation. It is therefore important that the radiologist is aware of the conventional normal and variant PV anatomy in addition to obvious abnormalities like anomalous PV drainage or PV stenosis/ occlusion. Multidetector CT (MDCT) is often used as the first-line imaging modality for pre-procedural PV mapping as it provides high quality images with short acquisition times and availability of numerous post-processing tools.This pictorial review focusses on the MDCT-based PV imaging describing the reporting nomenclature, the conventional normal as well as non-anomalous variant PV anatomy along with their clinical significance.
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Pandey et al. (2020) conducted a review in Pulmonary venous anatomy variations. Multidetector CT (MDCT) was evaluated. Multidetector CT is an effective first-line imaging modality for pre-procedural mapping of normal and variant pulmonary venous anatomy prior to cardiothoracic surgeries and catheter ablation.
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