| 摘要 |
In a method and a device to control a workflow of an MR measurement in a magnetic resonance system, MR signals from multiple slices of a predetermined volume segment of an examination subject are acquired, multiple slices with a continuous table feed. In the MR measurement, one of these multiple slices in the active volume of the magnetic resonance system is repeatedly measured in succession at different measurement positions Pi in an order corresponding to the index of the measurement positions Pi. The measurement positions Pi are determined via the following Equation, starting from a largely arbitrary first measurement position P1 selected in the active volume of the magnetic resonance system: P i = P i - 1 + d × ( ± c - 1 + c c + e × ( 1 - TR - TB TR ) ) , ⁢ ⁢ ⁢ for ⁢ ⁢ i = 2 , ... ⁢ , c + e , wherein d is a slice interval, c is a natural number greater than 1 and e is a whole number that is not greater than c and not less than 0. The number of measurement positions Pi in the active volume results from the sum of c and e. TB indicates a time period from the beginning of an excitation at one measurement position to the beginning of a chronologically next excitation at a measurement position nearest the measurement position. TR is a middle time period from the beginning of one excitation of a slice to the beginning of a chronologically next excitation of an additional slice and "±" means "+" if an excitation order follows a direction of the table displacement, and otherwise is "-". |
