Ge signa hdx 3t

The following equipment was used for MRI: GE Signa HDx 3T (GE Healthcare, Waukesha, Wis); Siemens 3T Trio Tim (Siemens Medical Solutions, Malvern, PA). At the outset of the 5-year study, we obtained a variety of high resolution, T2 2D MRI sequences in the sagittal and axial planes (parallel to the puborectalis muscle) at rest.[11 (link)] These sequences parallel to the puborectalis (PPR) were purposely obtained in order to measure relevant biometry in this plane of minimal hiatal dimensions. During the course of the study, we began using 3D isotropic T2-weighted sequences, which allowed us to manipulate high-resolution images in any plane we desired. Details of our imaging protocols have previously been published.[11 (link)–13 (link)]
At the same baseline visit, we also performed 3D transperineal ultrasounds at rest, squeeze and Valsalva using GE Voluson 730 (BT05) or GE Voluson e (BT12) equipped with RAB 4- to 8-MHz curved-array 3D transducer (GE Medical Systems, Zipf, Austria). We acquired volume datasets with an acquisition angle of 85 degrees, maximum field of view of 70 degrees in the sagittal plane, and depth of 6.8 cm.

The validation dataset included 28 healthy volunteers (age 20–64,
mean 35 years old), as described in a previous paper (30 (link)). These women were recruited to participate in a
non-contrast breast density study. Each subject was scanned using four different
MR scanners in two institutions, including GE Signa-HDx 1.5T, GE Signa-HDx 3T
(GE Healthcare, Milwaukee, WI), Philips Achieva 3.0T TX (Philips Medical
Systems, Eindhoven, Netherlands) and Siemens Symphony 1.5T TIM (Siemens,
Erlangen, Germany). Non-contrast T1-weighted images without fat suppression were
used for segmentation. Since both left and right breasts were normal, they were
analyzed separately, so there was a total of 56 breasts. The validation was done
using the 56 breasts acquired by each scanner first, and then using all 224
breasts acquired by all 4 scanners together. With a cases number of more than
200, it should be sufficient to do independent validation.