Ophthalmology

RT dose main risk for radiation-induced optic neuropathy

(HealthDay)—The main risk factor for developing radiation-induced optic neuropathy (RION) is radiation dose, with no indication of other significant risk factors, according to a study published online Feb. 9 in Clinical ...

Other

Conservative, high-precision computed tomography

A new CT scanner from Siemens reduces the radiation dosage for patients by as much as a half, depending on the examination. The machine operates with unprecedented speed and can record image sequences with high temporal resolution. ...

Oncology & Cancer

Digital chest tomosynthesis possible lung cancer screening tool

Most lung cancers are detected when patients become symptomatic and have late-stage disease. However, recently, computed tomography (CT) screening for lung cancer has been reported to reduce lung cancer mortality. Since the ...

Oncology & Cancer

Reducing radiation: Model shows hope for new standards worldwide

The University of Ottawa Heart Institute (UOHI) is setting the stage in what could become a revolution in medical imaging in Canada as it announces striking results in radiation reduction for the diagnosis of cardiovascular ...

Medical research

Molecular corkscrew

Scientists from the universities of Zurich and Duisburg-Essen have discovered a specific function of the protein p97/VCP. They demonstrate that the protein repairs DNA breaks like a corkscrew, a repair mechanism that could ...

Oncology & Cancer

Studies quantify radiation doses, cancer risks from CT scans

Doses of radiation from commonly performed computed tomography (CT) scans vary widely, appear higher than generally believed and may contribute to an estimated tens of thousands of future cancer cases, according to two reports ...

Diseases, Conditions, Syndromes

Acute heart attack patients receiving high ionizing radiation dose

Acute heart attack patients received an average total dose of ionizing radiation equal to 725 chest X-rays from medical tests during their hospital stay, according to research presented at the American Heart Association's ...