Coronary computed tomography angiography with 320-row detector and using the AIDR-3D: initial experience.

Coronary computed tomography angiography (coronary CTA) is a powerful non-invasive imaging method to evaluate coronary artery disease. Nowadays, coronary CTA estimated effective radiation dose can be dramatically reduced using state-of-the-art scanners, such as 320-row detector CT (320-CT), without changing coronary CTA diagnostic accuracy. To optimize and further reduce the radiation dose, new iterative reconstruction algorithms were released recently by several CT manufacturers, and now they are used routinely in coronary CTA.

Application of magnetic resonance spectroscopy in the differentiation of high-grade brain neoplasm and inflammatory brain lesions.

This study aims at evaluating the application of magnetic resonance spectroscopy (MRS) in the differential diagnosis of brain tumors and inflammatory brain lesions. The examinations of 81 individuals, who performed brain MRS and were retrospectively analyzed. The patients with ages between 10 and 80 years old, were divided into two groups.

Fetal hemodynamics evaluated by Doppler velocimetry in the second half of pregnancy.

The objective of our study was to assess fetal hemodynamics by Doppler velocimetry during the second half of pregnancy. We carried out a longitudinal study on 33 normal fetuses between the 22nd and 38th weeks of gestation. Doppler velocimetry was performed in the aorta, suprarenal (SRA) and infrarenal (IRA) segments, middle cerebral artery (MCA) and umbilical artery (UA), on the basis of fetal peak systolic velocity (SV), end-diastolic velocity (DV) and resistance index (RI).

[Violence and death by external causes].

An ecological study highlighted violence and death by external causes in Salvador and in Bahia through data furnished by the Fundação Nacional de Saúde (Health National Foundation) at the Ministério da Saúde (Ministry of Health), based on mortality records and population estimates by IBGE. The risk of death by homicide in Brazil is three times greater than in the United States, and up to forty times higher than in Japan. Homicide was the primary cause of loss of potential years of life (13.