Chest Radiology: Page 155

Flat-panel CT superior to chest x-ray for nodule detection
By James Brice
A prototype CT scanner with a flat-panel digital detector outperformed chest digital radiography (DR) in detecting pulmonary nodules, with more than twice the sensitivity of DR, according to Japanese researchers.
April 14, 2011
Pediatric pneumothorax volume measurement system developed
By Cynthia E. Keen
Diagnosing a pneumothorax in a pediatric patient and assessing its size are important for proper clinical management, especially in determining the need for chest-tube drainage. MDCT scans make diagnosis easier, but manually contouring identified pneumothoraces to determine their size can take hours to perform.
March 27, 2011
Preprocessing increases lossless compression of chest CT data
By Erik L. Ridley
A preprocessing technique can increase the compressibility achievable from lossless compression of thin-section chest CT images, according to research published online in Radiology. The technique could help sites handle the large data volumes produced by MDCT scans.
March 22, 2011
SBRT is safe, effective for suspected early-stage lung cancer
By Cynthia E. Keen
Not all patients with suspicious lesions in their lungs are strong enough to undergo a biopsy to confirm lung cancer. Should they be treated for the disease? That's the question asked by Canadian researchers in a March 7 article in the International Journal of Radiation Oncology, Biology, Physics.
March 13, 2011
Computer-assisted markup more accurate for lung nodules
By Eric Barnes
What's the best way to measure lung nodules at follow-up CT? Researchers from Weill Cornell Medical College say that computer-assisted markup shows less variability than manual drawing of the nodule; accuracy is also aided by comparing more recent scans with prior scans side by side.
March 9, 2011
High-pitch chest CT captures fast-moving babies
By Eric Barnes
VIENNA - High-pitch chest CT is a robust technique that provides high-quality thoracic images of babies in motion -- quickly, without sedation, and at low radiation doses -- according to a study presented at the European Congress of Radiology.
March 5, 2011
Lung screening study finds value in CR temporal subtraction
By James Brice
Computed radiography (CR) with temporal subtraction has proved more accurate than CR alone or chest CR with double reading in a study from Japan. The observer performance trial used exams from a 12-year archive of mobile lung cancer screenings.
February 27, 2011
High-pitch DSCT cuts pulmonary embolism scan dose
By Eric Barnes
Using high-pitch dual-source CT (DSCT) to rule out pulmonary embolism delivers the same image quality as both conventional MDCT and standard-pitch dual-energy CT -- but at a significantly lower radiation dose, according to a new study from Austria.
February 17, 2011
2011 02 17 16 48 41 706 Dezordo Thumb Comp
320-row perfusion CT finds malignant lung nodules
By Eric Barnes
Owing to its high resolution and wide anatomic coverage, dynamic first-pass perfusion 320-detector-row CT outperforms PET/CT for distinguishing benign from malignant lung nodules, researchers from Japan report in Radiology.
February 15, 2011
2011 02 15 14 20 37 828 Ohno Fig1b Thumb
CT screening study tracks reader agreement in nodule follow-up
By Eric Barnes
A study based on National Lung Screening Trial data found that agreement between readers on nodule growth and screening results at follow-up was acceptable, but it could be better, according to researchers from the University of Alabama and several other U.S. centers.
February 13, 2011
PET/CT falls short in finding metastases to hilar lymph nodes
By Edward Susman
SAN DIEGO - Researchers at this week's Society of Thoracic Surgeons meeting suggested that PET/CT scans alone may not be enough to identify metastases to the chest lymph nodes among patients being treated for non-small cell lung cancer.
February 2, 2011
QA technique monitors neonatal portable chest radiographs
By Cynthia E. Keen
All hospitals aim to keep radiation dose exposure to a minimum when taking chest radiographs of infants, but this goal can be undermined by invisible "dose creep" of digital x-ray equipment. An article recently published in Pediatric Radiology describes an easy way to monitor exposure levels.
January 26, 2011
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