Cost and affordability of healthy diets in Vietnam.

Objectives: To estimate the cost and affordability of healthy diets recommended by the 2016-2020 Vietnamese food-based dietary guidelines (FBDG).

Design: Cross-sectional analysis. The Cost of a Healthy Diet (CoHD) indicator was used to estimate the lowest cost of healthy diets and compare the cost differences by food group, region and seasonality.

Phase recognition in contrast-enhanced CT scans based on deep learning and random sampling.

Purpose: A fully automated system for interpreting abdominal computed tomography (CT) scans with multiple phases of contrast enhancement requires an accurate classification of the phases. Current approaches to classify the CT phases are commonly based on three-dimensional (3D) convolutional neural network (CNN) approaches with high computational complexity and high latency. This work aims at developing and validating a precise, fast multiphase classifier to recognize three main types of contrast phases in abdominal CT scans.