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Related Concept Videos

Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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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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Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

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Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
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Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

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IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
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Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

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Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
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Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

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Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
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Computed Tomography01:10

Computed Tomography

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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...
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Related Experiment Video

Updated: Jul 27, 2025

Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement
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Computed Tomography Planning for Transcatheter Mitral Valve Replacement.

Go Hashimoto1, Bernardo B C Lopes1, Hirotomo Sato1

  • 1Cardiovascular Imaging Research Center and Core Lab, Minneapolis Heart Institute Foundation, Minneapolis, Minnesota, USA.

Structural Heart : the Journal of the Heart Team
|June 5, 2023
PubMed
Summary

Transcatheter mitral valve replacement (TMVR) uses advanced CT scans to assess patient suitability, choose devices, and ensure safety. This review details CT imaging for TMVR in various patient groups.

Keywords:
MDCTMitral regurgitationTMVR

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Area of Science:

  • Cardiovascular Imaging
  • Interventional Cardiology
  • Medical Device Technology

Background:

  • Transcatheter mitral valve replacement (TMVR) is an emerging treatment for mitral regurgitation.
  • Multidetector computed tomography (MDCT) is crucial for planning TMVR, similar to transcatheter aortic valve replacement (TAVR).
  • Accurate imaging is vital for patient selection, device sizing, and procedural success in TMVR.

Purpose of the Study:

  • To provide a comprehensive review of MDCT's role in TMVR.
  • To detail the process of MDCT data acquisition, analysis, and procedural planning for TMVR.
  • To cover TMVR planning in patients with both native mitral valves and failed surgical prostheses.

Main Methods:

  • Review of current literature and guidelines on MDCT for TMVR.
  • Detailed description of MDCT protocols for mitral valve assessment.
  • Explanation of quantitative and qualitative analysis of MDCT data for TMVR.

Main Results:

  • MDCT is essential for anatomical assessment, including valve annulus dimensions, surrounding structures, and access routes.
  • CT imaging guides device selection, deployment strategy, and risk assessment for complications.
  • Specific imaging considerations are highlighted for native valves versus failed surgical valves.

Conclusions:

  • MDCT is indispensable for successful TMVR outcomes.
  • Standardized MDCT protocols and analysis are key to optimizing patient selection and procedural safety.
  • This review serves as a guide for clinicians performing MDCT for TMVR procedures.