Related Experiment Video

Updated: Feb 22, 2026

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
07:04

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit

Published on: April 15, 2021

2.5K

CT and MRI features of pseudoaneurysms of the mitral-aortic intervalvular fibrosa

Shoen Choon Seng Low1, Anil Attili2, David Bach3

  • 1FRCR, Department of Diagnostic Radiology, Singapore General Hospital, Outram Road, 169608, Singapore.

Clinical Imaging
|September 15, 2017
PubMed
Abstract

Insights

Computed tomography (CT) and magnetic resonance (MR) imaging reveal characteristic features of pseudoaneurysms of the mitral-aortic intervalvular fibrosa (PMAIVF). These imaging modalities are valuable complements to echocardiography for diagnosing PMAIVF.

Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Cardiac Surgery

Background:

  • Pseudoaneurysms of the mitral-aortic intervalvular fibrosa (PMAIVF) are rare but potentially life-threatening cardiac abnormalities.
  • Accurate diagnosis is crucial for timely intervention and management.
  • Echocardiography is a primary diagnostic tool, but CT and MRI offer complementary information.

Purpose of the Study:

  • To delineate the characteristic CT and MR imaging features of PMAIVF.
  • To evaluate the role of CT and MRI in the diagnosis and characterization of PMAIVF.

Main Methods:

  • Retrospective analysis of 9 patients diagnosed with PMAIVF.
  • Review of CT and MRI scans obtained within 3 months of echocardiography.
  • Independent review of imaging by a cardiologist and two cardiothoracic radiologists.

Main Results:

  • Key imaging findings for PMAIVF include a communication with the left ventricular outflow tract.
  • Characteristic location is between the anterior mitral valve leaflet and the aortic valve.
  • Dynamic imaging reveals systolic expansion and diastolic collapse of the pseudoaneurysm.

Conclusions:

  • CT and MRI demonstrate distinct and recognizable appearances of PMAIVF.
  • These advanced imaging techniques are valuable adjuncts to echocardiography for PMAIVF diagnosis.
  • Characteristic CT and MRI features aid in differentiating PMAIVF from other cardiac masses.

More Related Videos

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation08:10

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

Published on: July 20, 2022

2.2K
A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair08:31

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair

Published on: October 16, 2021

4.5K

Related Concept Videos

Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

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...
309
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
639
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
498
Mitral Regurgitation II: Clinical Features and Diagnostic Tests01:23

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
582
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
871
Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
670