X-ray tube current modulation, a popular feature available in newer CT scanners, improves image quality but may result in a higher radiation dose, according to Harvard University researchers.
X-ray tube current modulation, a popular feature available in newer CT scanners, improves image quality but may result in a higher radiation dose, according to Harvard University researchers.
Dr. Vassilios Raptopoulos, a professor of radiology, and colleagues analyzed the use of tube current modulation in a study of 55 consecutive oncology patients. The patients had undergone contrast-enhanced MSCT with the tube current modulation feature on the z-axis. They found that image quality/signal-to-noise ratio was much improved over a fixed level dose. Use of the feature also resulted in a significantly higher radiation dose, however.
Raptopoulos reported the study at the Stanford Multidetector-Row CT meeting in San Francisco in June.
New Literature Review Assesses Merits of Cardiac MRI After Survival of Sudden Cardiac Arrest
April 19th 2024While noting inconsistencies with the diagnostic yield of cardiac MRI in patients who survived sudden cardiac arrest, researchers cited unique advantages in characterizing ischemic cardiomyopathy (ICM) and facilitating alternate diagnoses.
Study of Ofatumumab for Multiple Sclerosis Shows 'Profoundly Suppressed MRI Lesion Activity'
April 17th 2024The use of continuous ofatumumab in patients within three years of a relapsing multiple sclerosis diagnosis led to substantial reductions in associated lesions on brain MRI scans, according to research recently presented at the American Academy of Neurology (AAN) conference.