Invention Grant
- Patent Title: Contrast agent-free MR angiography with SSFP sequences
- Patent Title (中): 无造影剂MR血管造影与SSFP序列
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Application No.: US12850705Application Date: 2010-08-05
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Publication No.: US08410779B2Publication Date: 2013-04-02
- Inventor: Michael Deimling , Alto Stemmer
- Applicant: Michael Deimling , Alto Stemmer
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Schiff Hardin LLP
- Priority: DE102009036237 20090805
- Main IPC: G01V3/00
- IPC: G01V3/00

Abstract:
In a method to generate an MR angiography image of an examination region of a subject without the use of contrast agent, a first MR image of the examination region is acquired with a first imaging sequence in which a gradient-induced phase development for unmoved and moved spins is essentially completely rephased at the end of a repetition interval TR, and a second MR image of the examination region is acquired with a second imaging sequence in which the gradient-induced phase development for unmoved spins is likewise essentially completely rephased at the end of the repetition interval TR and a rest phase φrest for moved spins remains at the end of the repetition interval TR. The second MR image is subtracted from the first MR image to generate the MR angiography image.
Public/Granted literature
- US20110031971A1 CONTRAST AGENT-FREE MR ANGIOGRAPHY WITH SSFP SEQUENCES Public/Granted day:2011-02-10
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