DOTmed Home MRI Oncology Ultrasound Molecular Imaging X-Ray Cardiology Health IT Business Affairs
News Home Parts & Service Operating Room CT Women's Health Proton Therapy Endoscopy HTMs Mobile Imaging
SEARCH
Current Location:
>
> This Story


Log in or Register to rate this News Story
Forward Printable StoryPrint Comment

 

 

Cardiology Homepage

MaxQ-AI seeks $8 million public IPO listing on Nasdaq Will help FDA regulatory processes for Accipio software products

Boston Scientific to buy VENITI for $160 million Price may rise pending FDA approval of Vici Venous Stent

NIH grants $1.5 million to Magnetic Insight for development of new imaging modality Uses non-radioactive, iron oxide nanoparticle tracer

MR-conditional labeling now available for Abbotts Infinity DBS system First FDA-cleared MR-conditional directional DBS system

Boston Scientific to acquire TAVR protection system with purchase of Claret Medical Will acquire ownership of the Sentinel System

Viz.ai to extend LVO AI-based platform beyond stroke Using $21 million from Series A funding to do so

Fewer ICDs are failing to comply with CMS NCD standards, says study Follows DOJ investigation into overuse of non-NCD-compliant ICDs

DaVita hit with $383.5 million jury verdict in dialysis death suit Three patients suffered cardiac arrest after getting GranuFlo therapy

New research finds leadless pacemakers cause fewer complications than conventional option Will they become the new standard?

Cardioverter defibrillator vest may be viable alternative to pediatric implants Promising study results may help patients unfit for surgery

Sudden cardiac death patients inform optimal CT imaging parameters

by Lisa Chamoff , Contributing Reporter
WASHINGTON, D.C. — It may be too late to treat adults who have succumbed to sudden cardiac death, but these individuals may help physicians diagnose patients at risk for developing acute coronary syndrome.

Researchers from the Dalio Institute of Cardiovascular Imaging and NewYork-Presbyterian Hospital, a joint venture with Weill Cornell Medicine, looked at how dual-energy CT (DECT) can help identify diseased arteries, using patients undergoing autopsy to determine how to get the best image quality for detecting high-risk plaques, comparing it with single-energy CT (SECT).

Story Continues Below Advertisement

RaySafe helps you avoid unnecessary radiation

RaySafe solutions are designed to minimize the need for user interaction, bringing unprecedented simplicity & usability to the X-ray room. We're committed to establishing a radiation safety culture wherever technicians & medical staff encounter radiation.



“The single-energy CT, which is mostly used, is limited in its ability to identify these high-risk plaque features, because it cannot identify the tissue characterization, and the CT images mostly show artifacts,” Dr. Asim Rizvi, a research fellow at Weill Cornell Medical College, told HCB News.

Rizvi presented the study — co-investigators included Dr. Fay Lin, Dr. Jessica Peña, Dr. Renu Virmani and Dr. James Min, director of the Dalio Institute — at the American College of Cardiology scientific meeting in Washington.

The researchers performed both SECT and DECT using GE Healthcare’s Revolution HD CT scanner on the hearts of 40 patients with suspected sudden cardiac death, who were autopsy candidates at the Office of the Chief Medical Examiner in Baltimore, Md.

“Currently, we don’t know which is the optimal monochromatic energy mode for dual-energy CT,” Rizvi said.

The researchers imaged the patients using DECT from 40 kiloelectronvolts (keV) to 140 keV and calculated signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) at each energy level. They found that 40 keV provided the highest, and optimal, SNR and CNR for identifying the high-risk plaques.

Rizvi noted that the study is still ongoing and that the researchers are planning to use a larger sample size.

Testing patients who have already died is the safest way to determine the parameters for the best CT image quality, Rizvi said.

“[You’re] giving the highest contrast dose, which is not very beneficial to the patient,” Rizvi said. “In the future, if we prove that dual-energy CT (with) this monochromatic energy form can best identify this high-risk plaque, it will be much better and then we don’t have to give that kind of radiation dose. We would just go directly to that energy level.”

Cardiology Homepage


You Must Be Logged In To Post A Comment

Advertise
Increase Your
Brand Awareness
Auctions + Private Sales
Get The
Best Price
Buy Equipment/Parts
Find The
Lowest Price
Daily News
Read The
Latest News
Directory
Browse All
DOTmed Users
Ethics on DOTmed
View Our
Ethics Program
Gold Parts Vendor Program
Receive PH
Requests
Gold Service Dealer Program
Receive RFP/PS
Requests
Healthcare Providers
See all
HCP Tools
Jobs/Training
Find/Fill
A Job
Parts Hunter +EasyPay
Get Parts
Quotes
Recently Certified
View Recently
Certified Users
Recently Rated
View Recently
Certified Users
Rental Central
Rent Equipment
For Less
Sell Equipment/Parts
Get The
Most Money
Service Technicians Forum
Find Help
And Advice
Simple RFP
Get Equipment
Quotes
Virtual Trade Show
Find Service
For Equipment
Access and use of this site is subject to the terms and conditions of our LEGAL NOTICE & PRIVACY NOTICE
Property of and Proprietary to DOTmed.com, Inc. Copyright ©2001-2018 DOTmed.com, Inc.
ALL RIGHTS RESERVED