the ACR’s prostate imaging reporting
and data system developed to help
improve early diagnosis and treatment
of prostate cancer. Without FOCUS,
Dr. Deibler says he wouldn’t be as
con;dent in his diagnosis since DWI is
the key sequence for assessing lesions
in the peripheral zone.
“DWI FOCUS is a major improvement in
terms of visualization. It does not excite
tissue outside of the ;eld of view, so
we are seeing fewer artifacts and much
better spatial resolution,” Dr. Deibler
explains. “I can see the true morphology
and margins. With 3.0T, we can achieve
very high resolution in a small ;eld of
view and match that up with the T2w
and perfusion ;ndings—that is very
helpful for interpretation.”
Dr. Deibler was also amazed at
how quickly GE Healthcare got the
scanner up and running. “The lack
of interruption of service was a nice
bonus,” he adds.
Setting Novant Health Imaging
Maplewood apart from its competition
by o;ering high-quality, high-;eld MR
imaging is the di;erence the center
was seeking, and the SIGNA Pioneer
has delivered, adds Paul Welborn,
That di;erence is most notable in
prostate imaging. According to Welborn
and Snow, the center was losing a
majority of its prostate imaging referrals
to a competitor that had a 3.0T MR.
“For prostate MR, the ACR recommends
a high channel count surface coil or an
endorectal coil, and a 3.0T MR except
in certain patients with implanted
devices,” says Dr. Deibler. Now, with
SIGNA Pioneer 3.0T and the 32-channel
anterior and posterior coils, the center
has ceased using the endorectal coil,
leading to greater patient comfort and
a high-quality image.
Dr. Deibler adds, “Overall, the SNR is
better at 3.0T and the combination of
better signal and high image quality
delivers the consistency and clinical
con;dence we need for these exams.
Almost all the scans performed on
the SIGNA Pioneer are an upgrade in
Snow typically utilizes DWI FOCUS
and LAVA Flex for the prostate cases.
Dr. Deibler calls DWI FOCUS the
“workhorse” for prostate imaging and
an important component for PI-RADS,
Figure 1. T1 and T2w images are high resolution and free of artifact allowing characterization of a PI-RADS grade 5 prostate cancer with
focal perineural involvement, con;rmed on pathology specimens from robotic prostatectomy.
Andrew Deibler, MD,
Director of MRI for MedQuest and
Triad Radiology Associates.