Access to computed tomography

Primary care access to computed tomography for chronic headache.

BACKGROUND The diagnostic yield of neuroimaging in chronic headache is low, but can reduce the use of health services. AIM To determine whether primary care access to brain computed tomography (CT) referral for chronic headache reduces referral to secondary care. DESIGN OF STUDY Prospective observational analysis of GP referrals to an open access CT brain scanning service. SETTING Primary...

Introduction to computed tomography

Dose Reduction Methods in Chest Computed Tomography

Introduction: Computed tomography is one of the most powerful tools for investigating thorax disease, because it shows progression of lung disease much clearer than chest radiography. Technical advances in CT scanners have led to some abilities for CT scanners such as coverage of larger volume, lower noise and ability for acquiring image in one respiratory phase. However, this will be accompani...

Computed Tomography

Radionuclide techniques for sizing acute myocardial infarction have been hampered by the intrinsic limitations of the scintillation camera. Emission computed tomography can overcome these limitations. Single photon emission computed tomograms of the distribution of technetium-99m pyrophosphate in acute anterior and posterior infarcts were obtained in 16 dogs after death. Tomograms were also obt...

Computed tomography.

Ronald L. Arenson, M.D., RSNA president, has noted that the Society’s annual meeting is approaching its second century with a new purpose and role to play in the practice of medicine. It will be incumbent on radiology professionals, he said, to constantly work at improving the analysis of medical images in a way that is meaningful to patients. “One of the key drivers is going to be whether or n...