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OHSU uses Ingenia 1.5T as a “workhorse” for routine neuro

Best Practice
Pollock, Jeffrey, M.D. OHSU • USA

Oregon Health and Science University (OHSU, Portland, Oregon, USA) is an academic hospital that gathers referrals from all around the Pacific Northwest region. OHSU installed Ingenia 1.5T in April 2011 and is currently scanning approximately 100 patients a week, about 70% of whom are neuro patients. Ingenia provides up to 40% more SNR than other systems, making it an excellent option for neuro imaging.

 <br> Jeffrey M. Pollock, MD, 
<br> Assistant Professor of Neuroradiology and Director of MRI and Functional MRI at OHSU

Jeffrey M. Pollock, MD,
Assistant Professor of Neuroradiology and Director of MRI and Functional MRI at OHSU

Routine neuro scans benefit from Ingenia's large bore and superb image quality

Jeffrey M. Pollock, MD, is Assistant Professor of Neuroradiology and Director of MRI and Functional MRI at OHSU. “For spine imaging, especially, Ingenia is very fast, saving time on both workflow and scan times,” says Dr. Pollock.

“It has better SNR than our other 1.5T scanners, and particularly our Ingenia spine imaging is outstanding. It is a very good spine imaging platform. There are several sequences we routinely perform in the brain where I have examples showing that Ingenia 1.5T images are superb. Ingenia is definitely a good workhorse system for neuro imaging.”

2-station total spine:
T2-weighted 2-station
sagittal total spine MRI exam
in a tall adult (6.0 feet,
183 cm).

Patient comfort and digitized coils add to ease of use

“The patient comfort level is really high, as well,” says Dr. Pollock. “With Ingenia we now scan a lot of larger patients, as well as claustrophobic patients; for both groups, the 70 cm bore is very helpful. Ingenia has allowed us to scan patients we otherwise couldn’t have scanned. I’ve actually been in the magnet myself and it was very spacious and comfortable. A comfortable patient helps make exams faster and easier.”

“With the tiltable dS HeadSpine coil, Ingenia can accommodate patients who may not be able to lie flat, or are uncomfortable in certain scanning positions. The head coil is also much less bulky, much more open around the face and more streamlined than other head coils I used,” says Dr. Pollock.

In addition, OHSU makes good use of the FlexCoverage coils. “We use the integrated Posterior coil for just about everything. You don’t even notice it; it’s just a part of the table.”

“Our techs say that all the coils are great to use. Signal is digitized at the patient, and fiber-optics are used instead of heavy cables. Therefore the coils are lighter and easier to work with than previous coils. It’s faster to change the coils and makes the workflow more efficient in terms of room turnover.”

Rhabdomyosarcoma: 2-year-old child with several month
history of nasal stuffiness. A large pedunculated nasal cavity
mass is seen that partially enhances. There is bilateral
adenopathy in the jugulodigastric and retropharyngeal nodes
seen on the axial image. Biospy showed rhabdomyosarcoma
with local metastasis.

Speed, image quality positively impact neuro scans

When optimizing scans, Dr. Pollock primarily focuses on image quality. “We optimize for image quality, but regardless of that, our time has still improved. We can do a complete, high quality brain exam in about 20 minutes, where it used to take about 35 minutes. And a total spine – cervical, thoracic and lumbar – takes about 25% less time than it could take on other platforms.”

Dr. Pollock and his team carefully optimized the Ingenia protocols according to their needs. In spine exams, for instance, they modified some of their axial T2 sequences. “I told the techs to scan a volunteer patient in 6 or 10 different ways and then not tell me what they did, but show me the images side by side. Judging by image quality, we’d pick the best one, and then see what time savings it had or didn’t have. After a few iterations of repeating the same sequence a couple different ways, we arrived at what we all liked and that became the new protocol.”

Multiple sclerosis:
An Ingenia 1.5T BrainView
FLAIR is reformatted in the
sagittal plane. The MS
lesions are well seen with
good contrast between the
lesions and normal white

More patients, better images, faster exams

On the whole, the higher SNR and faster workflow make Ingenia the neuro workhorse that it is, but Dr. Pollock also emphasizes the advantage of a large bore in routine neuro imaging. “Ingenia has opened the door for patients who we never thought would be able to get in a scanner, because of claustrophobia or because of their size. Many patients who might have had to use the open scanner can get into Ingenia and it works really well. So we now have the potential to scan many more patients on a better quality magnet.”

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Sep 19, 2012

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Best Practice
Ingenia 1.5T
Release 4
Brain, dS HeadSpine coil, dStream, FlexCoverage coil, multiple sclerosis, Neuro, rhabdomyosarcoma, Total spine

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