Eric Barnes

CT
AuntMinnie.com CT Insider
November 14, 2006
CT
3D reveals what axial images can't in small-bowel CT
Multidetector-row CT (MDCT) and advanced 3D processing are a powerful combination when it comes to examining the small intestine and its surrounding structures. Researchers from Korea discuss the limitations of techniques such as CT enterography when compared with noninvasive 3D imaging, and recommend exam and contrast protocols that can add value to images acquired at 16-detector CT.
November 14, 2006
2006 11 14 15 31 41 706
CT
Colonoscopy declines at VA: Is limited capacity to blame?
Over the past five years, colorectal cancer (CRC) screening rates have risen dramatically among patients at Veterans Affairs (VA) healthcare facilities. The bad news is that more patients than ever are choosing the least accurate test available, the fecal occult blood test (FOBT), according to VA researchers. Other research finds that sick people in the VA healthcare system may not live long enough to benefit from colorectal cancer screening, though, ironically, patients with significant comorbidities seem to have better access to screening.
November 12, 2006
CT
Nephropathy similarly low after iopamidol and iodixanol
Are isotonic contrast agents safer than the low-osmolar variety for patients with impaired kidney function? Not according to the results of a recent multicenter trial, which compared the two classes of intravenous contrast agents in patients presenting with high creatinine levels prior to CT imaging.
November 9, 2006
CT
High contrast flow rate best for pancreas CT
With the five-year survival rate for patients with pancreatic cancer at just 4% in the U.S. and surgical resection the only potential cure, the stakes are always high for pancreatic imaging. Contrast delivery and timing issues with CT imaging are key to determining resectability in these patients. Now researchers from Austria report that high contrast flow rates with individualized scan delays can improve CT results.
November 7, 2006
CT
Higher costs seen in post-VC extracolonic follow-up
The costs of following up extracolonic lesions found at virtual colonoscopy will be substantial, and very likely higher than what has been reported in previous studies, researchers from Wake Forest University in Winston-Salem, NC, report.
November 2, 2006
CT
CT for chest pain cuts hospital admissions
Multidetector-row CT (MDCT) has "tremendous potential" to decrease unnecessary hospital admissions for patients presenting with acute chest pain but nondiagnostic ECG results and normal cardiac enzymes, according to researchers from Massachusetts General Hospital and Harvard Medical School in Boston.
October 31, 2006
CT
Extracolonic lesions: Find them if you can
Identifying unexpected findings can save a patient's life, but a potential downside is always lurking on the road to follow-up and intervention. So what should radiologists do about extracolonic findings in VC? Look for them, by all means, and tell the patient what you find, according to a presentation at the recent International Symposium on Virtual Colonoscopy.
October 29, 2006
2006 10 25 08 10 29 706
CT
CT lung cancer screening reduces mortality
A massive CT screening study of smokers and former smokers has concluded that annual CT screening detects curable cancers, while suggesting that survival rates improve markedly when the tumors are resected. In the study, 92% of participants who had stage I cancers resected were alive five years later, while untreated patients succumbed to the disease.
October 25, 2006
CT
AuntMinnie.com Virtual Colonoscopy Insider
October 24, 2006
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PET predicts faster cognitive decline in women than men
Women initially outperformed men at low brain tau levels, but the advantage diminished as tau levels increased over time.
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Example of triage of no change in a pair of chest radiographs in the emergency department. (A) Baseline posteroanterior chest radiograph in a 63-year-old female patient shows a small amount of left (L) pleural effusion and partial atelectasis of the right middle lobe. (B) Follow-up posteroanterior chest radiograph obtained in the same patient 1 day later shows no significant change. (C) Gradient-weighted class activation map shows the algorithm determined no change in the image pair, without relevant highlighting, as the highlighted area is located over the gastroesophageal junction. Image courtesy of Radiology.
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