FDA issues radiation alert after CT brain perfusion overexposure

Oct 7, 2009

The U.S. Food and Drug Administration is investigating cases of radiation overexposure during CT brain perfusion scans conducted to aid the diagnosis and treatment of stroke. The agency said that at one particular facility, patients received radiation doses that were eight times the expected level.

Click here to read the rest of the article.

Latest in CT
Brainomix logo featuring teal brain symbol and gray text wordmark
Brainomix highlights study using e-Lung CT software
October 1, 2026
3D medical imaging of kidneys and renal blood vessels shown in three anatomical views
Medicare payment for cardiac CT declining
September 30, 2026
Imaging that comes to the patient with SOMATOM On.site
Sponsored
Imaging that comes to the patient with SOMATOM On.site
August 10, 2026
Baxter collaborative robot with teal and white articulated arm in neutral position
Accuray, Samsung NeuroLogica collaborate on CyberKnife platform
September 28, 2026
Related Stories
2009 03 02 17 08 56 389 2009 03 02 Radioactive Symbol
CT
FDA issues radiation alert after CT brain perfusion overexposure
2009 10 02 11 32 58 200 Mummy 70
CT
Austrian study uses MDCT to uncover tale of 12 mummies
2009 09 22 13 18 45 142 Rogalla thumb 09 09
CT
VC excels at diverticulosis staging
Cardiac imaging you can trust, now within reach with SOMATOM go.Top
Sponsor Content
Cardiac imaging you can trust, now within reach with SOMATOM go.Top
More in CT
Brainomix highlights study using e-Lung CT software
By AuntMinnie.com staff writers
The study showed that the firm's e-Lung software can estimate the effects of treatment in patients with pulmonary fibrosis.
October 1, 2026
Brainomix logo featuring teal brain symbol and gray text wordmark
Medicare payment for cardiac CT declining
By Amerigo Allegretto
Inflation-adjusted Medicare payment for cardiac CT declined 27% to 68% between 2010 and 2026, despite guideline endorsement.
September 30, 2026
3D medical imaging of kidneys and renal blood vessels shown in three anatomical views
Bosniak predicts renal cancer with unfavorable histologic features
By Amerigo Allegretto
The 2019 version of the Bosniak risk classification system can predict cancer in cystic renal masses with unfavorable histology.
September 29, 2026
Four abdominal CT scan images with arrows indicating anatomical features for medical diagnosis
Accuray, Samsung NeuroLogica collaborate on CyberKnife platform
By AuntMinnie.com staff writers
The companies will pursue advanced volumetric imaging capabilities for the CyberKnife System.
September 28, 2026
Baxter collaborative robot with teal and white articulated arm in neutral position
CT-based AI model predicts pneumonitis in lung cancer patients
By Amerigo Allegretto
The algorithm outperformed clinical and radiomics models in these patients.
September 25, 2026
Axial CT scan of chest showing bilateral lungs with contrast enhancement and anatomical detail
What are the effects of COVID-19 pneumonia after 5 years?
By Will Morton
After five years, residual lesions persisted in 35.6% of survivors (37 of 104).
September 24, 2026
COVID-19 pneumonia CT scan progression showing acute phase, 2-year and 5-year follow-up imaging with pulmonary vessel and ventilation-defect perfusion analysis across three patient severity groups.
Image-based grading system estimates nasopharyngeal carcinoma severity
By Amerigo Allegretto
The four-tier grading system showed excellent reliability and good prognostic value for patients with nasopharyngeal carcinoma.
September 23, 2026
MRI brain and neck imaging scans showing axial and sagittal views with anatomical structures
Altis Labs raises $25M for CT AI tool
By AuntMinnie.com staff writers
IPRO is designed to generate survival predictions from routinely acquired CT scans.
September 21, 2026
Stacked bundles of U.S. dollar bills arranged in rows showing currency denominations
a2z Radiology secures FDA clearance for CT AI device
By AuntMinnie.com staff writers
The software analyzes abdominopelvic CT images acquired with or without intravenous contrast in adults 22 and older.
September 21, 2026
Businessman touching holographic AI symbol on digital interface
Koning Breast CT System receives Australian TGA approval
By AuntMinnie.com staff writers
The system can now be sold in Australia, with Brisbane Radiology being the first Australian provider to purchase the system.
September 18, 2026
Australian flag with waving motion effect against dark background
AI boosts brain aneurysm detection on CT angiography
By Will Morton
AI preferentially detected smaller aneurysms (< 3 mm), while radiologists more often identified larger aneurysms (3 to 5 mm and > 5 mm).
September 17, 2026
Glowing neon brain-shaped circuit board pattern with blue and cyan lighting on dark background
CCTA links neighborhood income to atherosclerosis
By Will Morton
The relationship between socioeconomic disparities and imaging-defined coronary atherosclerosis on CCTA has not been fully understood.
September 15, 2026
Glowing anatomical illustration of human heart with coronary arteries on blue background
Page 1 of 693
Next Page