Kai Tobias Block,Robert Grimm,Marcel Dominik Nickel
申请号：
US14178741
公开号：
US20150226815A1
申请日:
2014.02.12
申请国别(地区):
US
年份:
2015
代理人:
摘要：
In a method for automatically detecting contrast enhancement at predetermined phases as a contrast agent bolus perfuses a target tissue volume in a patient, a continuous acquisition MRI imaging system is provided for obtaining dynamic contrast enhanced MRI data for use in creating images. The contrast agent bolus is injected into a blood stream of the patient which passes through the target volume. With the imaging system, a center of a k-space of the target volume is repeatedly sampled to obtain k-space data. A bolus time curve signal is automatically extracted from the k-space data which indicates a course of bolus contrast enhancement which is used to automatically pick time frames at the predetermined phases of the perfusion which are then used to identify corresponding key images to be obtained at the time frames.
