Chest Radiology: Page 178

MRI depicts small lesions, predicts malignancy in lung cancer
By Shalmali Pal
CT plays a major role in lung cancer imaging, with support from molecular imaging, sonography, and angiography. MRI also contributes to a greater understanding of small nodules, particularly with the recent introduction of improved protocols. Two new studies suggest that dynamic MRI and 3-tesla MRI can depict clinically significant small nodules, and also distinguish between benign and malignant lesions. In a related paper, Japanese nuclear medicine specialists looked at the value of MR for assessing cerebral lesions from metastatic lung cancer.
August 2, 2007
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Guardian extends USC collaboration
By AuntMinnie.com staff writers
Radiology informatics firm Guardian Technologies International yesterday announced an extension of its collaboration with the Medical Imaging and Informatics Laboratory at the University of Southern California in Los Angeles.
July 30, 2007
SUV readings vary on different PET systems, study finds
By Wayne Forrest
Standardized uptake values (SUVs) are one of several factors used to help distinguish malignant and benign etiologies. Multiple factors are known to cause variations in SUV, including uptake period, body weight, and reconstruction method. But researchers at the University of Maryland School of Medicine in Baltimore have found that SUVs can vary in PET systems manufactured by different vendors.
July 24, 2007
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Breast cancer radiotherapy parameters, patient age up chances of radiogenic lung damage
By Shalmali Pal
Last month Philadelphia-based researchers confirmed that the risk of cardiotoxicity in women undergoing breast radiotherapy was quite low. Unfortunately, the same can't be said for potential damage to the lungs. In a new paper, Hungarian oncotherapists found connections between patient age -- and other factors -- with the risk of early and late lung sequelae after conformal radiation treatment of breast cancer.
July 23, 2007
Researchers scrutinize CTA for pulmonary embolism
By Eric Barnes
More likely than not, a patient with unexplained shortness of breath or other symptom suggestive of pulmonary embolism (PE) will be sent for CT pulmonary angiography (CTPA) to rule it out. CT is fast and it does the job when vessels are examined systematically, but its false-positive rate can be high when combined with a low clinical probability of PE. Recent studies have shed new light on the use of CT in cases of suspected PE.
July 15, 2007
Delft installs Odelca-DR in Africa
By AuntMinnie.com staff writers
Delft Diagnostic Imaging, the parent company of PACS developer Rogan-Delft, has completed the first African installation of its Odelca-DR digital thorax screening device.
July 9, 2007
Automated analysis tools vary in pulmonary nodule measurements
By Erik L. Ridley
Different automated analysis tools vary in determining the size of pulmonary nodules, according to a multi-institutional research group. With data from a lung nodule detection study, the researchers used commercially available automated analysis packages to quantify the variations in nodule maximum diameter and volume among the different software tools. They found maximum dimension is an unreliable marker of tumor size, even when using automated analysis software.
June 24, 2007
FDG uptake correlates with survival, biomarkers in NSCLC
By Eric Barnes
Researchers have long sought early prognostic clues for lung cancer patients -- ideally signs that are early enough and robust enough to alter patient management. On both counts it appears that researchers from the Netherlands may be on to something. The group performed serial PET/CT scans in patients with non-small cell lung cancer (NSCLC). They found that the maximum uptake of FDG correlated not only with increased survival, but with two plasma biomarkers.
June 18, 2007
Median gets 510(k) for lung and liver apps
By AuntMinnie.com staff writers
French computer-aided detection (CAD) developer Median Technologies has received 510(k) clearance from the U.S. Food and Drug Administration for its LMS-Lung/Track and LMS-Liver applications.
June 17, 2007
CAD shows promise in tumor detection with PET
By Wayne Forrest
WASHINGTON - With computer-aided detection (CAD) already making its mark in other imaging modalities, researchers at the University of Chicago in Illinois have devised a method that shows how the technology may prove beneficial for tumor detection by PET. They presented their findings at this week's SNM meeting.
June 4, 2007
Duke researchers combine DR tomosynthesis with 3D CAD
By Brian Casey
The use of radiography to detect lung disease has been eclipsed in recent years by CT, which offers improved spatial resolution and the ability to find smaller tumors at an earlier stage. But a group from Duke University in Durham, NC, hopes to make radiography competitive again with the use of digital x-ray tomosynthesis and a computer-aided detection (CAD) algorithm.
June 3, 2007
Marijuana increases lung cancer risk
By Eric Barnes
Despite the biological plausibility of marijuana being carcinogenic, and suggestions that overall lung cancer risk may be associated with pot smoking, epidemiologic findings of marijuana use have been weaker and far less consistent than studies associating tobacco smoking with lung cancer. But a new study from New Zealand finds that pot smokers do indeed face higher lung cancer rates that increase for every year of smoking, and for patients who begin smoking younger.
May 31, 2007
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