منابع مشابه
Respiratory motion models: A review
The problem of respiratory motion has proved a serious obstacle in developing techniques to acquire images or guide interventions in abdominal and thoracic organs. Motion models offer a possible solution to these problems, and as a result the field of respiratory motion modelling has become an active one over the past 15 years. A motion model can be defined as a process that takes some surrogat...
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Background: The aim of this work was to study the feasibility of constructing a fast thorax model suitable for simulating lung motion due to respiration using only one CT dataset. Materials and Methods: For each of six patients with different thorax sizes, two sets of CT images were obtained in single-breath-hold inhale and exhale stages in the supine position. The CT images were then ...
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Introduction: There are several technical features that make PET an ideal device for the noninvasive evaluation of cardiac physiology. Organ motion due to respiration is a major challenge in diagnostic imaging, especially in cardiac PET imaging. These motions reduce image quality by spreading the radiotracer activity over an increased volume, distorting apparent les...
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Background: 3DCRT (three-dimensional conformal radiotherapy) and IMRT (intensity-modulated radiotherapy) has provided us with tools to delineate the radiation dose distribution of tumor targets. However, the precision of radiation can be compromised by respiratory motion, which usually limits the geometric and dosimetric accuracy of radiotherapy. The purpose of this study is to evaluate the imp...
متن کاملMiddle East Respiratory Syndrome Coronavirus (MERS-CoV): A Review Article
The recently emerged Middle East respiratory syndrome coronavirus (MERS-CoV) emerged in the Middle East region in 2012. The virus is phylogenetically related to bat CoV, but other animal species like camels and goats may potentially act as an intermediate host by spreading the virus to humans. This virus is thought to cause a severe disease in patients with underlying comorbidities. Laboratory ...
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ژورنال
عنوان ژورنال: Medical Image Analysis
سال: 2013
ISSN: 1361-8415
DOI: 10.1016/j.media.2012.09.005