Navigation Links
Portable CT Increases Chance of Stroke Survival and Recovery

CHICAGO, Dec. 2 /PRNewswire-USNewswire/ -- New research has found that the availability of a portable eight-slice computed tomography (CT) scanner in an emergency room can significantly increase the number of stroke victims who receive a potentially life-saving treatment. Results of the study, conducted at North Shore Medical Center (NSMC)-Salem Hospital in Salem, Mass., will be presented today at the annual meeting of the Radiological Society of North America (RSNA).

"The hospital's acquisition of a portable CT scanner facilitated more rapid assessment of acute stroke patients and is anticipated to increase the number of patients to whom thrombolytic therapy can be administered," said the study's lead author, David B. Weinreb, M.D., now a resident physician in the Department of Radiology at Hospital of Saint Raphael in New Haven, Conn.

According to the National Institute of Neurological Disorders and Stroke (NINDS), stroke is the third leading cause of death in the U.S., and more than 700,000 cases of stroke are diagnosed annually. The most common kind of stroke, ischemic stroke, occurs when a blood clot blocks a blood vessel in the brain. Such strokes can be treated with thrombolytic therapy using a drug called tPA that dissolves the blockage. However, the window of opportunity to safely administer the medication is generally considered to be just three hours. Also, it is important to determine that there is no bleeding in the brain before administering tPA. One out of six strokes is caused by bleeding rather than clotting.

"tPA is usually the only shot we have at clot-induced ischemic strokes," Dr. Weinreb said. "But it needs to be administered in a closely monitored situation, because the drug can have extremely adverse effects in those patients whose strokes are instead due to bleeds."

Before a patient receives tPA, a head CT must be performed to ensure there is no bleeding in the brain. NINDS recommends that patients who arrive in the emergency room (ER) with signs of acute stroke undergo CT imaging within 25 minutes.

For the study, Dr. Weinreb and colleagues began using a portable CT scanner to assess stroke patients in the ER of NSMC-Salem Hospital. During the month prior to the acquisition of the portable scanner and for a four-month period following its installation, researchers measured how much time elapsed between a physician order for a head CT and performance of the scan.

The availability of the CT scanner in the hospital's ER reduced the time between the order and exam from 34 minutes to 15 minutes, a reduction of 54 percent. Based on simulation modeling, the researchers estimated that this improvement would increase by 86 percent the number of stroke patients able to be treated with thrombolytic therapy within the three-hour window.

According to Dr. Weinreb, most stroke patients are taken to relatively small community hospitals where access to CT scanning may be limited. When a CT scanner is available, it is not always in proximity to the ER, making transportation of critically ill patients to the radiology department both difficult and time-consuming.

"A portable eight-slice CT can be easily added and used to accurately identify a head bleed in a stroke or trauma patient," Dr. Weinreb said. "This new technology is able to solve a very important problem for a community hospital, where the majority of stroke victims are being treated."

Co-author is James E. Stahl, M.D.

Disclosure: Dr. Weinreb consults as a medical writer for Neurologica.


  • Using a portable CT scanner in a hospital emergency room may increase the number of patients successfully treated for stroke within the critical three-hour window by 86 percent.
  • Most stroke victims are treated at small community hospitals where access to CT may be limited.
  • Stroke is the third leading cause of death in the U.S.

Note: Copies of RSNA 2008 news releases and electronic images will be available online at beginning Monday, Dec. 1.

RSNA is an association of more than 42,000 radiologists, radiation oncologists, medical physicists and related scientists committed to excellence in patient care through education and research. The Society is based in Oak Brook, Ill. (

Editor's note: The data in these releases may differ from those in the printed abstract and those actually presented at the meeting, as researchers continue to update their data right up until the meeting. To ensure you are using the most up-to-date information, please call the RSNA Newsroom at 1-312-949-3233.

For patient-friendly information on CT, visit

    Media Contacts: RSNA Newsroom 1-312-949-3233
    Before 11/29/08 or after 12/4/08: RSNA Media Relations 1-630-590-7762
    Maureen Morley Linda Brooks
    1-630-590-7754 1-630-590-7738

SOURCE Radiological Society of North America (RSNA)
Copyright©2008 PR Newswire.
All rights reserved

Related medicine technology :

1. Atrial Fibrillation Found to be Common in Patients With Atherothrombosis, Increases Risk of Cardiovascular Death, Heart Attack and Stroke
2. Study Confirms That Avastin Significantly Increases Chance of Living Without Disease Progression in Metastatic Breast Cancer
3. CPR Data Debriefing by Hospital Responders Improves CPR Performance and Increases Initial Survival Rate Following Cardiac Arrest
4. New Pharma Business Model Increases Pressure on Staff Communicating Trial Data
5. Increases in West Nile Virus Replikin Concentrations Precede Increases in the Number of Human Cases
6. Orqis(R) Medicals Cancion(R) System Significantly Increases Cardiac Performance
7. New Data Shows Ranexa(R) Increases Glucose-Stimulated Insulin Secretion
8. Emisphere Announces Second Study Demonstrating Dramatic Increases in Absorption of Oral B12 Using eligen(R) Technology at Lower Doses
9. Oncology Drug Development Update - Molecular Profiling Redefines the Nature of Malignancy and Increases the Adoption of Targeted Therapeutics
10. The Quigley Corporation Reports Third Quarter Results, Increases Investment in Pharmaceutical R&D for Diabetic Neuropathy
11. Analysis Shows Vernakalant Hydrochloride Injection Increases Conversion to Normal Heart Rhythm in Acute Atrial Fibrillation Patients Treated Within 48 Hours of Onset
Post Your Comments:
(Date:11/25/2015)... 2015 ... the  "Global Drug Device Combination Products ... offering.  --> ) ... "Global Drug Device Combination Products Market ... --> Research and Markets ( ...
(Date:11/24/2015)... CARLOS, Calif. , Nov. 24, 2015 ... a leader in non-invasive genetic testing and ... announced that it will present at the ... in New York on Wednesday, December 2, 2015 at 1:00 p.m. ET.  Matthew ... the Company,s financial results, business activities and ...
(Date:11/24/2015)... Nueva York , 24 de noviembre de ... del Avery Breathing Pacemaker System, se complace anunciar ... Ph.D. como consultor clínico. ... Foto -   ... Jonzon es un fisiólogo y consultor en neonatología ...
Breaking Medicine Technology:
(Date:11/24/2015)... ... November 24, 2015 , ... Eric C. Seidel, DMD and ... of the revolutionary BIOLASE WaterLase iPlus 2.0™ system. This advanced laser technology uses ... a dentist in Gettysburg, PA . From routine visits to cosmetic treatments, ...
(Date:11/24/2015)... ... November 24, 2015 , ... New patients who wish to seek ... dental implants at her Mississauga, ON practice. Dr. Williams has been providing ... of dental implants. , Missing teeth can lead to a variety of complications ...
(Date:11/24/2015)... Dallas, Texas (PRWEB) , ... November 24, 2015 , ... ... of all charitable donations are made in the last five weeks of the year ... #GivingTuesday was created in 2012 to connect the nation’s charities with those individuals who ...
(Date:11/24/2015)... , ... November 24, 2015 , ... In an ... restrictions and variables that determine which patients are or are not eligible for bariatric ... have a BMI over 40, are more than 100 pounds overweight, or have a ...
(Date:11/24/2015)... ... November 24, 2015 , ... DMG Productions announced that they will feature ... quarter 2016 via Discovery Channel. Dates and show times TBA. , Aphria, Inc., is ... the business of producing and supplying medical marijuana pursuant to the Marijuana for Medical ...
Breaking Medicine News(10 mins):