Hello,<div><br></div><div>Thank you for the DTI training session in Turtle Bay last week. It was very helpful for us!</div><div><br></div><div>I am wondering how to manually adjust the gradients for an oblique angle. I am using Siemens 3T Trio Tim VB17.</div>
<div><br></div><div>My default gradient (for one direction) is:</div><div>0.861, -0.366, 0.354</div><div><br></div><div>After clicking "Rotate gradients if applicable" in DTIStudio 3.0.2 (March2010), the gradient is:</div>
<div>0.861, -0.489, 0.142</div><div><br></div><div>I couldn't find exactly which tag in the DICOM header contains the rotation information. The closest I could find is "ImageOrientationPatient". The value for this is:</div>
<div>[ 1 0 0 0 .8846 -.4664]</div><div><br></div><div>How do I go from the default gradient to the rotated gradient? Also, can I use this same method on the VB13 and VA25 software?</div><div><br></div><div>Thank you very much for your help!</div>
<div>Jeff Sadino</div>