A study of 24 patients found that MRI with an endorectal coil at 1.5T outperforms conventional body coils in staging prostate cancer. The results suggest a need for advances in coil technology to improve imaging at higher field strengths.
Peroneal nerve injuries are common in traumatic knee dislocations and require precise knowledge for surgical intervention. Sonography accurately identifies nerve injuries and their extent, enabling optimal therapy planning.
The new imaging technique enables rapid acquisition of three planes, reducing examination time to 12 minutes compared to the standard method. Fetal MRI is being increasingly performed due to its excellent view of brain tissue and lack of radiation, usually done when ultrasound is inconclusive.
A study found that transcatheter arterial embolization procedures using a digital flat-panel system resulted in lower radiation doses to patients' skin, ranging from 130-467 mGy. This compares to higher doses of 510-1,882 mGy with conventional units.
A new study found that a computer-aided mammography detection system increased the detection rate of small invasive cancers by 164% in younger women. The CAD system helped detect these cancers more than five years earlier than without it.
A study published in American Journal of Roentgenology found that 3D MRI can detect pancreatic cancer in patients with severe mid-abdominal pain and other symptoms. The study suggests that radiologists should look for pancreatic cancer even if the patient didn't have an examination for that purpose.
A recent study published in the American Journal of Roentgenology found that batch reading mammograms results in lower recall rates and accurate cancer detection. The research analyzed 9,522 screening mammograms, with 1,538 interpreted by batch reading, showing a 20.1% to 16.2% decrease in recall rates.
A recent study published in the American Journal of Roentgenology found that MRI is more comprehensive than SPECT in assessing heart damage in patients with hypertrophic cardiomyopathy. MRI was able to detect small areas of heart damage and provide important data on cardiac function, whereas SPECT only became relevant if no abnormaliti...
The study found that using a 180-degree X-ray tube position, minimum current, and 80 kVp settings can significantly reduce radiation exposure in CT scans. This approach allows the table to absorb low-energy X-rays, minimizing breast exposure without compromising image quality.
A new contrast agent enables quicker and more thorough MRI screenings for potential living liver donors. The study found that this agent can image the liver, bile duct, and vessels simultaneously, reducing the need for separate examinations.
MDCT arthrography outperforms MRI in detecting cartilage problems, offering better 3D evaluation and tissue contrast. The study suggests MDCT arthrography as a prominent method for imaging patients with hip dysplasia.
A study of 497 emergency room patients found that repositioning during CT scans improved image quality for multiple trauma cases. By reorienting the patient's body position, artifacts caused by arms, electrodes, and cables were minimized, resulting in comparable image quality to routine imaging.
A recent study published in the American Journal of Roentgenology found that contrast-enhanced MRI is more accurate than FDG-PET in detecting liver tumors, especially for smaller lesions. The study analyzed 79 liver tumors and showed an accuracy rate of 75.5% for MRI versus 64.1% for PET.
A study of 58 breast cancer patients found that initial tumor volume and changes in tumor volume during chemotherapy are strong predictors of recurrence-free survival. MRI measurements can help tailor treatment strategies for individual patients.
A study published in the American Journal of Roentgenology found that CT scans significantly reduced the need for appendectomies from 20% to 3% at an urban hospital. The technology's accuracy in imaging the appendix and detecting mimic conditions led to a dramatic decrease in unnecessary surgeries.
Researchers found that dutasteride suppresses blood flow in benign prostate tissue, enabling targeted biopsies to detect cancer more effectively. This reduction in benign blood flow improved cancer detection rates and may reduce the need for repeat biopsies.
A new CAD system has improved the accuracy of breast MRI analysis, allowing radiologists to better determine cancer lesion sizes. The system reduced analysis time by an average of 7 minutes compared to standard software.
A study of 23 pancreatic biopsies found ultrasound-guided biopsies to be effective in obtaining adequate samples, with a diagnosis possible in 61% of cases. The procedure is easier on patients than traditional endoscopic biopsies, which require sedation and are less efficient.
A study by Dr. Linda Tang found that radiology residents can reliably interpret head CT scans for initial triaging of acute stroke patients, achieving a 97% agreement rate with attending physicians. The results have affected hospital protocol and require certification prior to taking call.
A recent study suggests that chest CT scans can be used to identify patients who have had a heart attack. The study found that normal heart muscle enhancement is reduced in patients who have had a recent heart attack, making it possible for radiologists to look for this sign as the first step in identifying a potential heart attack. Fu...
A new MRI technique called isotropic imaging shows promise in detecting meniscal tears and other knee injuries, potentially avoiding knee surgery altogether. With an accuracy rate of 96%, the technique could be used to determine if patients need immediate surgery or can benefit from rehabilitation first.
A new sonic flashlight device allows physicians to visualize ultrasound images during catheter placement, making the procedure faster and more efficient. This innovation has the potential to increase patient safety, decrease costs, and improve patient comfort, enabling medical personnel to perform procedures with greater ease.
The US topped global rankings for high-tech imaging, with the highest per capita use of MR and CT. In contrast, India, China, and Indonesia had the lowest usage of these technologies.
A recent study found that chest CT scans are necessary for multiple trauma patients, even if initial X-ray results appear normal. The study analyzed data from 563 patients and revealed that X-rays missed 40% of clinically significant thoracic injuries.
A six-week study found that video replay of teaching rounds significantly improved radiology residents' case-based knowledge and communication abilities. The study used videotaped feedback to help residents develop awareness of their strengths and nonverbal skills, reducing anxiety and improving board exam performance.
A new study published in the American College of Radiology shows that expandable electrodes are safe and effective for radiofrequency ablation of liver tumors. The procedure resulted in high survival rates and low complication rates, comparable to those achieved through surgery.
Researchers found that coated stents were better at keeping blood vessels open in cirrhosis patients, with improved survival rates and fewer interventions needed. The study analyzed data from 93 patients who underwent a successful TIPS procedure using either coated or non-coated stents.
A new ultrasound technique called streaming detection has been shown to accurately identify benign cysts in breast lumps, allowing for the reduction of unnecessary diagnostic procedures. This innovative method could potentially decrease both patient discomfort and healthcare costs associated with cyst aspirations.
Fine-needle aspiration of axillary lymph nodes has been shown to be a safe and effective alternative to sentinel lymph node biopsy or axillary dissection for patients with suspected breast cancer. The procedure allows for precise treatment and can help avoid unnecessary surgeries, saving money and time.
The study found that MDCT pulmonary angiograms increased from 21.9 to 42.5 per month, while ventilation-perfusion scans dropped from 5.7 to 3.6, indicating a shift towards diagnosing pulmonary embolism by CT. This change is attributed to advancements in MDCT scanners, which can quickly image the pulmonary vasculature with high resolution.
Researchers successfully transmitted ultrasound images over phone lines, demonstrating feasibility for real-time diagnosis in resource-poor settings. The study showed that compressed images were comparable to non-compressed ones in terms of diagnostic accuracy, paving the way for expanded healthcare access.
Researchers have developed a whole-body MRI technique that can scan patients' entire bodies in under 20 minutes for cancer spread to bone, detecting 100% of cases. This method offers better sensitivity and specificity than other methods, making it a promising tool for non-invasive cancer diagnosis.
A study by Dr. Sughra Raza found that digital mammography reduced call-back rates by 1.2% compared to conventional films, resulting in lower patient anxiety and associated costs. The switch from conventional to digital mammography also led to a decrease in patients needing additional imaging tests.
A new breast shield designed to reduce radiation dose to female breasts during chest CT scans has been developed, with results showing a 43-73% reduction in radiation exposure. The shield is lightweight, comfortable, reusable and can be used for both routine chest CT examinations and CT angiography.
A recent study has found that CT angiograms are being performed at a significantly higher rate than necessary, leading to increased radiation exposure for patients. The study, which analyzed data from 2002-2004, showed that the percentage of patients with pulmonary embolism diagnosed using CTA decreased over time.
Researchers discovered non-coronary findings in 60 patients via heart CT scans, including lung cancer and aneurysms. Radiologists' training is crucial for early disease management and improved patient prognosis.
A recent study has found Botox to be highly effective in treating severe drooling in children with neurologic conditions. The procedure was successful in approximately 70% of the tested patients, resulting in significant improvement without any serious side effects.
A meta-analysis of 35 studies found CT colonography to have a high sensitivity and specificity for detecting polyps and colorectal cancer, making it a promising alternative for screening. The study's findings suggest that CT colonography could increase patient compliance and improve early detection rates.
A new electronic exhibit developed by Andrea Walker and Vesna Kriss aims to help radiologists confidently diagnose child abuse using imaging techniques. The exhibit highlights red flags such as fractures in different stages of healing, posterior rib fractures, and long bone fractures in children who are not walking.
Researchers found that low-dose MDCT can provide similar diagnostic image quality to standard-dose CT scans while reducing radiation doses by up to 10 times. The study suggests low-dose MDCT is a better option for evaluating sinus disease in children due to its improved accuracy and reduced need for sedation.
A study published in the American Journal of Roentgenology found that MDCT is highly accurate in diagnosing coronary artery disease in patients with little to moderate calcium buildup. However, its accuracy drops significantly in cases with severe calcification, emphasizing the need for conventional angiography in such cases.
Researchers analyzed 403 sonograms of solid masses, finding that the BI-RADS lexicon descriptors were highly predictive for both malignant and benign masses. Descriptors like circumscribed margins were accurate in 90% of instances for benign lesions.
A new study found no significant difference in outcomes between patients ruled out for pulmonary embolism with MDCT and single-detector CT. However, the increased detection rate of small clots may lead to more unnecessary treatment, increasing risks such as hemorrhagic stroke.
Bone SPECT outperforms FDG PET in detecting breast cancer metastases, with a sensitivity of 85% and accuracy of 96%. PET's limitations make it less effective in revealing certain types of lesions.
A study found that Computer-Aided Detection (CAD) systems can effectively detect small and subtle breast cancers, with a sensitivity of up to 92% for lesions of 5 mm or less. CAD also helps reduce missed cancers and positively impacts breast cancer prognosis without increasing patient recall rates.
A study by American College of Radiology found MRI to be useful in assessing suspected breast cancer patients, detecting additional cancers not visible on mammography or sonography. The use of computer-assisted diagnosis improved accuracy and led to recommended mastectomies for some patients.
A new study finds that MRI is more accurate than current standards in assessing the effectiveness of neoadjuvant chemotherapy for breast cancer. The imaging technique correctly identified the presence of residual tumor in 71% of cases, while sonography and clinical examination were less accurate.
Researchers analyzed 4,369 chest radiographs from 313 SARS patients and found that lung opacification levels on the seventh day could predict fatal outcomes. Patients with greater than 20% lung opacification were more likely to die from SARS, while those with less than 10% had a higher survival rate.
A pilot study found cryoablation to be an effective treatment for cancer patients' severe pain, providing relief until the end of life. The procedure involves freezing tumor tissue and surrounding areas to kill cancer cells and ease pain, with most patients tolerating it well despite some nerve damage in one patient.
A full-body MRI study found that 21% of healthy patients exhibited signs of atherosclerotic disease and 12% had peripheral vascular disease. The screenings also revealed relevant additional findings in non-targeted organs, raising questions about the benefits and risks of such screenings.