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Related Concept Videos

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...

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Related Experiment Video

Updated: Jun 29, 2026

Microvascular Decompression: Salient Surgical Principles and Technical Nuances
10:35

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Sinus Sequestration After TAV-in-SAV: Optimizing CT Planning and Procedure.

Yuki Irie1, Atsushi Okada1, Shuhei Fujita1

  • 1Department of Heart Failure and Transplantation, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.

JACC. Case Reports
|June 13, 2025
PubMed
Summary

Sinus sequestration risk in transcatheter aortic valve (TAV)-in-surgical aortic valve (SAV) procedures may be underestimated. Detailed computed tomography (CT) planning and optimized TAV expansion are crucial for successful treatment.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Cardiac Surgery

Background:

Keywords:
aortic valvecomputed tomographystenosistreatmentvalve replacement

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  • Sinus sequestration is a recognized complication of transcatheter aortic valve-in-transcatheter aortic valve (TAV-in-TAV) procedures.
  • The risk of sinus sequestration in transcatheter aortic valve-in-surgical aortic valve (TAV-in-SAV) procedures may be underrecognized.
  • Proper assessment is vital to identify and manage this complication.