Neurosurgery had a growing need for. And since the brain and neck coils were separate from one another, patients had to get up from the table while we changed coils.” The surgical department also requested higher-quality MRCP images and the ability to perform non-contrast enhanced MR angiographies (Non-CE MRA) of the torso and lower extremities. Replacing the 0.5T with a 1.5T was further supported by a points system based on Tesla strength in Japan’s medical reform—essentially, a 1.5T system was able to secure higher emuneration. With the support of the hospital, Mr. Totsuka led the selection of a new MR system that would provide high-quality scans.
Selection and evaluation
Systems from three companies were
evaluated, including a personal inspection
of each manufacturing facility by
Mr. Totsuka. He reviewed each system’s
workflow and imaging capabilities
and concluded that the efficiency
and robust image quality of the
Brivo MR355 would meet the
hospital’s clinical needs.
The Brivo MR355 in practice
For Mr. Totsuka, his first impression of
the Brivo MR355 was its high-definition
imaging. The system’s entire magnet
gantry was substantially improved with
an analog/digital (AD) conversion inside
the gantry and the use of the Op Tix RF
digital-optical transmission system.
With Op Tix RF, a received signal is sent
over a fiber optic cable running to the
cabinet outside the MR room, reducing
signal noise and enabling the acquisition
of high definition images. This result is
especially pronounced in MRCP images
of cholelithiasis and cholecystitis—the
water signal is brightened, other signals
(i.e., background noise) are suppressed,
and the intrahepatic bile duct and
pancreatic duct can be well visualized.
Non-CE MRA scans with Inhance (Cholecystectomy)
Figure 1A. MIP image of the celiac
artery and the hepatic artery using
Inflow IR with respiratory triggering.
Figure 1B. MRCP image
Figure 1C. The resulting image from the
combination and volume rendering of “A”