Related Experiment Video

Updated: Sep 8, 2026

Surgery and Sample Processing for Correlative Imaging of the Murine Pulmonary Valve
07:34

Surgery and Sample Processing for Correlative Imaging of the Murine Pulmonary Valve

Published on: August 5, 2021

Radiographic appearances of the St. Jude Medical Valve

D J Paquet1, P A Randall, F B Parker

  • 1Department of Radiology, SUNY Health Science Center, Syracuse.

Canadian Association of Radiologists Journal = Journal L'Association Canadienne Des Radiologistes
|September 1, 1988
PubMed

Insights

The St. Jude Medical Valve (SJMV) is often difficult to see on X-rays. This study found the SJMV is visible in 92% of patients on standard chest radiographs, aiding radiologist identification.

Area of Science:

  • Radiology
  • Cardiovascular Imaging
  • Prosthetic Devices

Background:

  • The St. Jude Medical Valve (SJMV) is a widely used prosthetic cardiac valve.
  • Previous reports suggest SJMV visualization on plain radiographs is poor, often requiring fluoroscopy.

Purpose of the Study:

  • To assess the visibility and typical appearances of the SJMV on plain chest radiographs.
  • To determine the diagnostic utility of standard radiography for SJMV evaluation.

Main Methods:

  • Retrospective review of chest radiographs from 76 patients with 85 implanted SJMVs.
  • Analysis of frontal and lateral radiographic views for SJMV visibility and characteristics.

Main Results:

  • The SJMV was visualized postoperatively in 70 out of 76 patients (92%) on chest radiographs.
  • Both frontal and lateral views contributed to visualization in the majority of cases.

Conclusions:

  • The SJMV is readily visible on plain chest radiographs in most patients.
  • Familiarity with normal SJMV radiographic appearances and cardiac anatomy aids radiologist identification.

More Related Videos

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model05:31

Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model

Published on: June 8, 2022

Related Concept Videos

Heart Valves01:16

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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...
Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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...