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METHOD AND APPARATUS FOR DETERMINATION OF A SUITABLE TABLE POSITION FOR AN MR EXAMINATION STEP

  • US 20150201863A1
  • Filed: 01/23/2015
  • Published: 07/23/2015
  • Est. Priority Date: 01/23/2014
  • Status: Abandoned Application
First Claim
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1. A method to determine a table position for an examination step in a magnetic resonance (MR) apparatus comprising a movable patient table, on which an examination subject is situated, said method comprising:

  • (a) moving said patient table, with said examination subject situated thereon, to a first table position within said MR apparatus, and selecting a first measurement volume from which MR data are to be acquired from the examination subject in a first examination step of an MR data acquisition procedure, said first measurement volume having a first measurement volume focal point;

    (b) conducting adjustment measurements to adjust components of said MR apparatus to parameters that are needed for said first examination step, and storing results of said adjustment measurement in an electronic memory as first adjustment parameters;

    (c) selecting a second measurement volume within the examination subject, from which MR data are to be acquired in a second examination step, said second measurement volume having a second measurement volume focal point;

    (d) in a computer, calculating a difference selected from the group consisting of a difference between an optimal table position of said patient table for said second examination step and said first table position, and a difference between said first measurement volume focal point and said second measurement volume focal point;

    (e) in said computer, comparing said difference to a threshold to obtain a comparison result designating whether said difference does or does not exceed said threshold; and

    (f) operating said MR apparatus to acquire said MR data from said second measurement volume in said second examination step, with said patient table at said optimal table position for said second examination step, if said difference exceeds said threshold, and operating said MR apparatus with said first adjustment parameters, and with said patient table at said first table position, to acquire said MR data from said second measurement volume in said second examination step, if said difference does not exceed said threshold.

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