Thoracic Imaging: Page 51

'Virtual phantom' helps guide dose reduction in CR studies
By Rebekah Moan
U.K. researchers have developed a computer-based simulator for estimating radiation dose in computed radiography (CR) studies. The researchers believe their "virtual phantom" could prove more effective than physical phantoms by enabling clinicians to gauge the impact of patient anatomy when imaging parameters are changed.
February 15, 2012
2012 02 15 18 04 43 278 2012 02 17 Chest Radiography Thumb
Post-op rad therapy unneeded for elderly lung cancer patients
By Cynthia E. Keen
Patients who have undergone surgery to resect stage III non-small cell lung cancer with N2 lymph node involvement may not need postoperative radiation therapy if they are older than 65, as the treatment doesn't help survival, according to an article published online February 13 in Cancer.
February 12, 2012
Follow-up protocol performs well in CT lung screening
By Eric Barnes
Swiss researchers have reported good results with a protocol for working up patients with nodules found on CT lung screening, according to an article in the February issue of the American Journal of Roentgenology. The algorithm produced low false-positive rates, and could make the establishment of large-scale CT screening programs more feasible.
January 26, 2012
2012 01 26 11 38 54 196 2012 01 27 Ct Lung Thumb
MRI lung perfusion looks set for broader clinical use
By Wayne Forrest
Contrast-enhanced MRI pulmonary perfusion should be used in a broader clinical area, in part because the modality can be performed quickly, even in critically ill patients, but optimal temporal resolution and contrast-to-noise ratio are both necessary to achieve appropriate perfusion imaging of the lung, according to researchers.
January 22, 2012
Digital tomosynthesis may have role in lung cancer screening
By Rebekah Moan
Digital chest tomosynthesis may be a promising first-line tool for lung cancer screening, a preliminary study out of Italy shows. Using the modality with a digital radiography system detected noncalcified nodules in a percentage comparable with CT scans in previous studies.
December 15, 2011
2011 12 13 12 49 26 477 2011 12 16 Digital Tomo Thumb
DR chest tomosynthesis helps characterize lung lesions
By Rebekah Moan
The use of chest tomosynthesis with a digital radiography (DR) system enabled radiologists to characterize pulmonary lesions, circumventing the need for further diagnostic workup of patients with CT, according to a study by Italian researchers.
December 13, 2011
2011 12 13 12 34 42 255 2011 11 29 Digital Tomo Xray Thumb
DR chest tomo reduces number of CT exams in Sweden
By Rebekah Moan
Using chest tomosynthesis with a digital radiography system reduced the number of chest CT exams performed at a Swedish institution, leading to lower radiation dose and better use of CT resources, according to a presentation from last week's RSNA meeting.
December 11, 2011
2011 12 12 09 14 02 207 Sweden Flag 70
Automated calcium scoring fits well with lung cancer screening
By Erik L. Ridley
Coronary calcium scoring with an automated technique fits well in a lung cancer screening setting, enabling cardiovascular risk assessment in a population potentially at high risk of cardiac events, according to a Dutch study presented at the RSNA 2011 meeting.
December 7, 2011
Mint Medical upgrades Lesion software
By AuntMinnieEurope.com staff writers
German image processing developer Mint Medical has released its new mint Lesion 1.8 software for assessing lymphoma patients.
December 5, 2011
CT lung screening gets boost by adding COPD sequence
By James Brice
Low-dose CT lung screening has already demonstrated its effectiveness in reducing mortality from lung cancer. Now, Dutch researchers have found that adding a short sequence to the low-dose CT protocol can help the modality detect chronic obstructive pulmonary disease (COPD), according to a study published on Tuesday in the Journal of the American Medical Association.
October 26, 2011
Reconstruction technique boosts lung CAD performance
By Erik L. Ridley
Adaptive statistical iterative reconstruction technology not only improves CT image quality but also increases the sensitivity of computer-aided detection (CAD) software for detecting lung nodules, according to an article published online in the European Journal of Radiology.
October 16, 2011
2011 10 14 14 10 18 621 Petct 2 Steinert Lung 70
Novel x-ray computer model avoids need for repeat exposures
By Rebekah Moan
A digitally reconstructed radiograph computer algorithm has been produced -- and validated -- that adequately simulates anatomical and system noise. The image evaluators grade simulated chest x-rays at different exposure parameters to optimize radiographic technique for clinical computed radiography without repeat patient exposures.
September 27, 2011
2011 09 28 09 48 53 352 2011 09 28 Figure3 Thumb
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