Articles tagged with Radiology
A prospective study found that CAD significantly improves cancer detection rates, particularly for calcifications, while reducing recall rates slightly. The results indicate that CAD is an effective way to double-read mammograms without the need for a second radiologist.
A study of 238 blunt and penetrating trauma patients found MDCT to be highly effective in diagnosing thoracic and lumbar spine injuries. CT scans characterized fractures, making surgery easier for surgeons.
MDCT angiography successfully diagnosed suspected arterial injuries in 48 of 49 patients, with only one patient requiring a follow-up angiogram. The study suggests that MDCT angiography can replace traditional angiography as an initial diagnostic tool.
Researchers at Dartmouth College developed and tested three alternative breast imaging methods to learn about breast tissue structure and behavior. The non-invasive techniques include electrical impedance spectral imaging, microwave imaging spectroscopy, and near infrared spectral imaging.
Researchers at UCLA successfully deliver gene therapy agents directly into tumor cells with minimal complications, improving effectiveness and reducing side effects of existing treatments. The study demonstrates the feasibility and safety of CT-guided injection for gene therapy delivery.
Researchers found that MR-compatible incubators allow for high-quality imaging of critically ill newborns without radiation exposure. The incubators streamline the examination process and improve image resolution, enabling earlier and more accurate diagnoses.
Researchers at Dartmouth Medical School have developed a new breast imaging technique using electrical impedance, microwave imaging, and near-infrared spectroscopy. The method can identify specific breast characteristics that differ in normal and diseased tissue, potentially leading to early detection of breast cancer.
Interpretation times for digital mammography (SFM) were significantly shorter than those for full-field digital mammography (FFDM), with a 59% difference. Technical problems also occurred more frequently in FFDM cases, impacting accuracy and efficiency.
Researchers successfully treated 21 small breast cancers with RF ablation, destroying malignant tissue with no adverse effects. However, surrounding tissue was not removed, limiting the procedure's effectiveness as a standalone treatment.
A recent study found that stenting has excellent short-term results for treating lower-extremity ischemia, with a high success rate of 98 percent. The procedure also has a significantly lower mortality rate compared to femoral artery bypass surgery.
A study by University of Alberta researchers found that 22 patients had vertebral fractures, with 45% going undiagnosed. Vertebral fractures often indicate osteoporosis, a common disease in the elderly that can be easily treated with drugs.
A new index, CTPE Index, quantifies clot size and predicts patient outcome in pulmonary embolism. Patients with high clot burdens are at increased risk of death and may require aggressive treatment.
A study found that a computer-aided detection system did not change mammography recall rates or breast cancer detection rates, suggesting it may not be beneficial in academic practices. The results were similar even when focusing on the seven highest-volume radiologists at the center.
A study found that PET scans revealed significant abnormalities in 53 patients, including 30 cases with malignant or premalignant tumors unrelated to primary cancer. Follow-up was crucial to diagnose incidental findings, which were often asymptomatic.
The new 'camera pill' technology has shown significant potential for diagnosing small bowel disease, particularly in conjunction with computed tomography. It can detect more abnormalities than standard imaging techniques and provide detailed images of the entire small intestine.
A survey of medical school deans and state medical society executives reveals widespread physician shortages in the US. The most frequently cited specialties experiencing shortages are anesthesiology (50%) and radiology (44%), with other subspecialties such as cardiology, gastroenterology, and geriatrics also reporting deficits.
A study by Michigan Medicine found that seeking a second opinion for breast cancer may significantly alter diagnosis and treatment plans. The research, led by Dr. Amy Rochester Guest, suggests that patients with complex cases or those who are diagnosed with both breasts affected benefit most from consulting specialized teams.
The virtual autopsy combines CT and MR imaging to provide detailed information about trauma injuries and soft tissue. This technology can also be used in situations where traditional autopsy is not feasible due to religious or family objections.
A new procedure using cryotherapy has been shown to effectively reduce the size of benign breast lumps by an average of 73% without significant complications. Patients report satisfactory cosmetic results and a high level of patient acceptance for this non-invasive treatment.
The University Hospitals of Cleveland is using GE's RapidScreen Digital to improve lung cancer detection rates. The CAD system analyzes digital x-ray data and draws circles around suspicious regions, focusing radiologists on potential abnormalities.
A new MRI technique using whole brain N-acetylaspartate (WBNAA) measures the amount of NAA in the brain, which decreases with MS disease progression. This method is more sensitive and specific than current markers, enabling earlier treatment monitoring and drug development for MS patients.
Researchers found that a three-minute head scan is comparable to the traditional 20-minute version in terms of image quality and diagnostic results. The new protocol eliminated complications from patient movement, resulting in better image quality and accurate blockage identification for clot-busting drugs.
A recent MRI study found degenerative changes in the spine as early as childhood, contradicting previous assumptions about when back trouble begins. The research suggests proactive steps should start early in life to prevent future issues.
A prospective multicenter trial found that 3-D virtual colonoscopy is more sensitive than conventional colonoscopy, detecting over 90% of significant polyps with minimal discomfort and cost
A new standard has been proposed for coronary artery calcium screening, which aims to improve accuracy and comparability of results. The new system uses a calibrated scoring method and reduces radiation doses for small and medium-sized patients.
Labral tears in hip cartilage have been identified as a common injury among professional golfers, with MRI scans revealing significant damage. Eight pro golfers underwent successful arthroscopic surgery to repair labral injuries, marking a significant shift towards earlier diagnosis and treatment of hip pain.
A study using fMRI found that children with seriously delayed speech have higher levels of right brain lobe activity and less total brain activation than age-matched children. This suggests that speech-delayed children may be less receptive to language as they age, highlighting the importance of early intervention.
Researchers used MRI to study 45 healthy elderly patients and found that progressive brain atrophy was predictive of future cognitive decline. The medial temporal lobe, a small but critical brain region, showed the most significant correlation with memory loss.
Researchers used transarterial chemoembolization (TACE) to treat patients with liver tumors, shrinking them by up to 35% in size. Patients who responded successfully were then treated with laser-induced thermotherapy (LITT), allowing for a more aggressive approach to tumor treatment while preserving patient quality of life.
A study published in Radiology found that MRI can accurately detect bone invasion by soft-tissue sarcomas, with a sensitivity and specificity of 100% and 93%, respectively. This accuracy enables radiologists to confidently evaluate MR results for bone involvement, previously reserved for soft tissue involvement.
A large-scale study from Massachusetts General Hospital finds radiofrequency ablation (RFA) to be the most effective treatment for osteoid osteoma, a type of benign bone tumor. RFA offers a high success rate and low complication rate, making it an attractive alternative to traditional surgery and medication.
Researchers found that coronary artery calcium scoring can predict death with high accuracy, especially in individuals with high scores. The study contributes to the debate on using calcium screening to detect latent atherosclerosis and its link to heart disease.
Contrast digital mammography has been shown to accurately identify cancers in patients with suspicious abnormalities, reducing false positives and unnecessary biopsies. The new technique uses intravenous iodine contrast to enhance blood vessels created by tumors, improving detection in dense breast tissue.
The study found that over half of the centers offering full-body scans were located on the east and west coasts, with California and New York having the largest concentrations. The researchers recommend stricter regulation to protect healthcare consumers from unregulated repeat exams and unwarranted expenditures.
A new study provides a precise formula to lower CT radiation doses for pediatric patients, reducing abdominal doses by up to 80%. The technique charts offer guidance for both head and body CT scans for children from infancy to adolescence.
Self-referred whole-body CT scanning has grown rapidly, with 88 imaging centers nationwide and prices ranging from $795 to $1,215. Researchers caution that the technology's effectiveness is uncertain and potential risks include radiation exposure and false-positive results.
Contrast-enhanced MRI is a reliable method to measure blood flow to tumors, allowing for accurate assessment of chemotherapy response and tumor viability. The study found that patients who responded to treatment had significant decreases in angiogenesis, while non-responders showed increases.
A new study found that combining radiofrequency ablation with chemotherapy can effectively treat larger liver tumors. The treatment, which involves using heat to destroy tumor tissue and administering a chemotherapeutic agent intravenously, resulted in a tripling of survival rates compared to those receiving no treatment.
New technologies, such as robotics and GPS-guided therapy, are being integrated with imaging technology to enhance precision in minimally invasive procedures. These advancements aim to reduce human error and improve patient outcomes.
Detachable coil embolization is a new approach to treating brain aneurysms, offering less invasive treatment with shorter recovery times. The procedure has been shown to reduce mortality rates by 22.6% compared to traditional open surgery for patients with ruptured aneurysms.
A survey of US radiology residents found that most were hesitant to pursue breast imaging training or interpret mammograms due to negative attitudes and perceived drawbacks. The shortage of qualified radiologists is expected to worsen as demand for screening mammography services increases with an aging population.
A study conducted at Lausanne University Hospital found that MDCT accurately depicted more spine fractures than conventional x-rays, with a sensitivity rate of nearly three times higher. This innovation could save time, money, and radiation exposure for patients admitted to emergency departments for severe trauma.
A study of 73 patients with symptoms suggestive of SARS found that CT scans identified three common features: ground-glass opacification, lower lobe distribution, and peripheral distribution. These findings suggest that CT can be a valuable diagnostic tool for detecting SARS, particularly in cases where chest x-rays are normal.
A study published in the Journal of Vascular Interventional Radiology suggests that percutaneous radiofrequency ablation can be an effective treatment for osteoid osteomas, with all eight patients achieving complete pain relief. The use of CT fluoroscopy enhanced imaging guidance improved precision and success rates.
A study found that using mammograms read by specialists reduces call back rates significantly, with an average rate of 8% in the second year compared to 11% in the first year. Specialists are defined as radiologists who have read 3,000 mammograms per year over the last two years.
A study of 716 consecutive emergency head CT examinations found general radiologists and neuroradiologists were in agreement on 95% of studies. The study suggests that general radiologists can accurately interpret emergency CT scans with high accuracy rates, similar to neuroradiologists.
A study found that MR imaging identified 86% of residual disease, outperforming mammography in detecting disease near the lumpectomy site. The imaging modality was also most accurate in identifying disease in different quadrants than the original tumor site.
A new radiology procedure has been shown to alleviate pain caused by uterine fibroids, with all nine patients experiencing significant symptomatic improvement. The procedure involves blocking blood flow to the affected area using special particles or spheres, resulting in normal menstrual periods and no hormonal changes.
A new study suggests that CT readings at oncology centers differ from those at general hospitals, affecting relative value unit assessments (RVUs). The average length of CT reports and character counts were significantly higher at oncology centers, with prior scans being directly compared more often.
The study found that voice recognition technology has reduced report time turnaround from 133 hours to 66 hours, with preliminary reports available within 14 hours. However, technical issues such as freezing and interfacing problems with RIS systems have led to decreased productivity and satisfaction among radiologists.
Researchers found that women who underwent pelvic arterial embolization experienced no significant long-term side effects, including fertility preservation. The procedure also showed a shorter recovery period compared to hysterectomy.
A new imaging technique using hyperpolarized helium MRI offers a noninvasive method to study the airways of people with asthma. The technique provides information on ventilation and depicts structure and function of the airways, which can help correlate symptoms with treatment.
A study found that recent radiologists interpreted screening mammograms more accurately than those with less training, while facilities with higher diagnostic volume showed improved accuracy. The researchers suggest additional studies to clarify the complex relationship between radiologist experience and mammogram interpretation.
Researchers will study ultra high field magnetic resonance imaging (MRI) to develop clearer, more precise images of the body's interior. The goal is to improve diagnosis and treatment for patients.
A new study demonstrates that learning and speech therapy can alter the way compensatory pathways in the brain work after a stroke. The research supports the hypothesis that brain pathways in the right hemisphere are directly involved in the recovery of language skills.
A study of community radiologists' mammogram interpretations found wide variation in how often masses, calcifications, and suspicious lesions are detected. False-positive readings increased with patient demographics, training level, and time since graduating from medical school.
Researchers at Johns Hopkins Medicine found that percutaneous vertebroplasty can be performed safely without venography in most cases. The study showed that 205 consecutive procedures without venography resulted in no major complications or cement leakage, with over 80% of patients experiencing major pain relief.
A study found that high-volume mammography readers in the US detected fewer cancers than their British counterparts, despite meeting lower annual standards. The research suggests re-engineering US screening programs to improve efficiency and quality without increasing interventions.
A biomedical engineer has developed a 'sonic flashlight' that combines ultrasound images with the patient's natural appearance, enabling doctors to guide procedures without looking away. This technology could improve hand-eye coordination and reduce learning curves for radiologists.
A study published by Dr. Dean Shibata found that people's brains use both rational and emotional parts when making personal decisions. When asked to choose between options, the ventromedial frontal lobe showed increased activity in the brain.