We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us
GLOBETECH PUBLISHING LLC

Download Mobile App




Minimally Invasive Aortic Valve Replacement Performed Using Real-Time CT Imaging

By MedImaging International staff writers
Posted on 06 May 2022
Print article
Image: Minimally invasive aortic valve replacement done using real-time CT imaging (Photo courtesy of Pexels)
Image: Minimally invasive aortic valve replacement done using real-time CT imaging (Photo courtesy of Pexels)

Cardiologists from the Hackensack University Medical Center (Hackensack, NJ, USA) have reported what is believed to be the very first patient with heart failure and a blood clot to undergo a minimally invasive transcatheter aortic valve replacement using CT (computed tomography) fusion imaging, a technique that employs two different imaging modalities.

The patient was a 78-year-old man with a history of obesity, high blood pressure, and coronary artery disease. He came to the hospital with worsening labored breathing on exertion and swelling in the lower extremities over three months. His imaging workup revealed severe stenosis of the aortic valve, left ventricular (LV) ejection fraction of 45% to 50%, and LV apical aneurysm with thrombus (an outpouching of the left ventricle with a blood clot). Ejection fraction is a measurement of the percentage of blood leaving the heart each time it contracts.

Cardiac catheterization showed severe coronary artery disease that was not amenable to minimally invasive procedures used to open clogged coronary arteries. He was started on anticoagulation with warfarin with planned follow-up. The patient returned to the hospital six months later due to loss of consciousness from low blood pressure. Four-dimensional volume-rendered computed tomography (CT) images showed persistent left ventricle apical thrombus. The Heart & Vascular Hospital team elected to proceed with transcatheter aortic valve replacement (TAVR) given his high surgical risk, poor functional status, lack of response to anticoagulation, and hospitalization for fainting. Because of the risk posed by the apical thrombus, TAVR with CT fusion imaging (CTFI) guidance and cerebral embolic protection was planned. The patient had an uneventful hospital course; there was no evidence of cerebral or systemic embolization. He was discharged in a few days and was doing well at his one month follow up appointment.

“We believe this case is potentially groundbreaking because of its successful outcome and the fact that the presence of left-ventricle thrombus or blood clot has historically been considered to be a contraindication to transcatheter aortic valve replacement, an alternative to open-heart surgery to replace heart valves in patients with heart disease,” said Rahul Vasudev, M.D. “Although the nature of catheter manipulation in the left ventricle during the procedure cannot guarantee absence of contact with the blood clot, advances in imaging technology and embolic protection may allow transcatheter aortic valve replacement, if a surgical alternative is not possible, to be performed with greater safety in this setting.”

“We believe this was the first case of TAVR with real-time CTFI to facilitate wire and catheter positioning to avoid disruption of the left ventricle thrombus,” said Tilak K. R. Pasala, interim director, Structural and Congenital Heart Disease Program.

Related Links:
Hackensack University Medical Center 

Gold Member
Solid State Kv/Dose Multi-Sensor
AGMS-DM+
Radiology Software
MSK Radiology
Ultrasound System
P25 Elite
New
Brachytherapy Planning System
Oncentra Brachy

Print article
Radcal

Channels

Radiography

view channel
Image: The study supports annual screening beginning at age 40 as the best way to diagnose cancer early (Photo courtesy of 123RF)

Annual Mammography Beginning At 40 Cuts Breast Cancer Mortality By 42%

Breast cancer remains a leading cause of cancer-related deaths among women in the United States. Although studies have shown that regular mammography screenings can cut breast cancer fatalities by 40%,... Read more

MRI

view channel
Image: Researchers have created a new MRI brain extraction tool for neonates (Photo courtesy of 123RF)

Deep Learning Algorithm Performs Automatic Segmentation of Neonatal Brains from MR Images

Magnetic Resonance Imaging (MRI) is a vital tool in medical diagnostics, particularly because of its high-resolution images and superior soft tissue contrast, which make it crucial for brain evaluations.... Read more

Ultrasound

view channel
Mindray`s comprehensive range of ultrasound machines include the Resona I9 (photo courtesy of Mindray)

Non-Invasive Ultrasound Technique Helps Identify Life-Changing Complications after Neck Surgery

Nasopharyngoscopy is an intrusive diagnostic medical procedure that involves the examination of the internal structures of the nose and throat (nasopharynx) using an endoscope inserted through the patient’s nose.... Read more

Nuclear Medicine

view channel
Image: The PET imaging technique can noninvasively detect active inflammation before clinical symptoms arise (Photo courtesy of 123RF)

New PET Tracer Detects Inflammatory Arthritis Before Symptoms Appear

Rheumatoid arthritis, the most common form of inflammatory arthritis, affects 18 million people globally. It is a complex autoimmune disease marked by chronic inflammation, leading to cartilage and bone... Read more

General/Advanced Imaging

view channel
Image: The new AI-enabled CT 5300 aims to bring confident diagnosis to more patients at low cost (Photo courtesy of Royal Philips)

AI-Enabled CT System Provides More Accurate and Reliable Imaging Results

Computed Tomography (CT) plays a critical role in diagnosing cardiac diseases. Recent research advocates a "CT first" approach for patients with chest pain and undiagnosed coronary artery disease, thus... Read more

Imaging IT

view channel
Image: The new Medical Imaging Suite makes healthcare imaging data more accessible, interoperable and useful (Photo courtesy of Google Cloud)

New Google Cloud Medical Imaging Suite Makes Imaging Healthcare Data More Accessible

Medical imaging is a critical tool used to diagnose patients, and there are billions of medical images scanned globally each year. Imaging data accounts for about 90% of all healthcare data1 and, until... Read more

Industry News

view channel
Image: The acquisition will expand IBA’s medical imaging quality assurance offering (Photo courtesy of Radcal)

IBA Acquires Radcal to Expand Medical Imaging Quality Assurance Offering

Ion Beam Applications S.A. (IBA, Louvain-La-Neuve, Belgium), the global leader in particle accelerator technology and a world-leading provider of dosimetry and quality assurance (QA) solutions, has entered... Read more
Copyright © 2000-2024 Globetech Media. All rights reserved.