RSNA 2019 MRI Preview

Road to RSNA 2019: MRI Preview

By Wayne Forrest, contributing writer
November 6, 2019

No matter how mature MRI becomes, the diverse utility of the modality is endless, as evidenced in the wide range of clinical applications to be discussed in the scientific sessions of RSNA 2019. Look at any one of a number of scheduled events and you are bound to find at least one presentation about MRI.

The natural evolution in magnet strength in recent years has resulted in clinical scanners operating at 7 tesla, enabling the ability to explore the causal depths of neurological conditions at levels of detail never seen before. Attendees will have a plethora of opportunities at RSNA 2019 to see how ultrahigh-field MRI is contributing to current knowledge on dementia and Alzheimer's and Parkinson's diseases.

At the same time, some researchers are looking to "power down" MRI to determine if less is more for the modality. One novel project is looking into 0.55-tesla to determine how the lower-field technology might overcome the challenge of MRI accurately visualizing lung disease.

The current status of gadolinium-based contrast agents (GBCAs) and the debate over potential long-term effects of gadolinium deposition again will garner much attention at RSNA 2019. Several sessions are scheduled to provide additional insights into the judicious use of GBCAs and detail cases, such as musculoskeletal imaging, where contrast might not be needed at all.

Tuesday's lineup includes a refresher course on GBCAs and a discussion of what clinicians should know about gadolinium deposition in brain tissue, the liver, and bone. The MRI safety session also includes the most appropriate way to handle patients with pacemakers and other implanted cardiac devices and, perhaps most importantly, how staff can create an oversight structure to eliminate unnecessary danger and accidents in the MRI suite.

Also on the agenda are novel MR modalities, such as MR elastography and MR spectroscopy, from which patients with liver or pelvic maladies, for example, can benefit. Naturally, session tracks on women's imaging will feature a number of MRI applications, ranging from detecting breast cancer to MRI-guided biopsy to safely determining the development of a fetus during gestation.

This year's RSNA meeting features hundreds of informative and novel scientific sessions, posters, refresher courses, and educational exhibits to advance your knowledge of how best to take advantage of MRI on a daily basis. You can find a full listing of the events through the RSNA 2019 meeting program.

In the meantime, we have highlighted a sample of the presentations scheduled for RSNA 2019.

Scientific and Educational Presentations
Are MRI scans safe for patients with metal piercings?
Sunday, December 1 | 12:05 p.m.-12:15 p.m. | SSA22-09 | Room E353A
Should clinicians proceed with an MRI scan if a patient refuses to remove a metal piercing? Researchers from the University of Rochester put that question to the test. They found that the answer depends on the accessory.
Abbreviated breast MRI improves screening outcomes
Monday, December 2 | 9:05 a.m.-9:15 a.m. | RC215-04 | Arie Crown Theater
In this talk, Canadian researchers will discuss how an abbreviated breast MRI screening protocol in women with a high risk for breast cancer leads to fewer false positives and benign biopsies when compared with a conventional protocol -- and doesn't compromise the cancer detection rate.
MRI pinpoints important cardiomyopathy indicators
Monday, December 2 | 11:10 a.m.-11:20 a.m. | SSC02-05 | Room S401CD
With the right indicators, cardiac MRI can be used to detect and monitor cardiomyopathy in women after their first round of chemotherapy to treat breast cancer, say investigators from Germany.
How suitable is CESM as a breast MRI alternative?
Tuesday, December 3 | 10:40 a.m.–10:50 a.m. | SSG01-02 | Room S102CD
At this Tuesday morning session, German researchers will explore how suitable contrast-enhanced spectral mammography (CESM) is as an alternative to MRI for breast cancer screening.
Blood vessel disease is best explored with MRI
Tuesday, December 3 | 10:40 a.m.-10:50 a.m. | SSG10-02 | Room N229
In this session, researchers will report on MRI's efficacy in assessing the dysfunction of blood vessels in the brain, or intracranial vasculopathies.
MR elastography aids characterization of liver disease
Tuesday, December 3 | 11:20 a.m.-11:30 a.m. | SSG05-06 | Room E351
A group from the Mayo Clinic in Rochester, MN, has found that MR elastography can differentiate between two types of liver disease: noncirrhotic and cirrhotic portal hypertension.
7T MRI accurately shows microbleeds from head trauma
Tuesday, December 3 | 3:00 p.m.-3:10 p.m. | SSJ18-01 | Room S406B
With the help of 7-tesla MRI, German researchers believe they can better identify cerebral microbleeds experienced by U.S. football players from repeated hits to the head.
The current state of GBCAs and gadolinium deposition
Tuesday, December 3 | 4:30 p.m.-6:00 p.m. | RC429B | Room E350
Dr. Emanuel Kanal is bringing his perspective on gadolinium-based contrast agents (GBCAs) and gadolinium retention to RSNA 2019 with this Tuesday talk based on what he tells patients, referring physicians, radiologists, and, yes, even attorneys.
fMRI could help predict outcomes of dystonia patients
Wednesday, December 4 | 11:10 a.m.-11:20 a.m. | SSK16-05 | Room S401CD
Functional MRI (fMRI) could become a valuable tool in predicting the efficacy of deep brain stimulation to treat a debilitating movement disorder known as dystonia.
Is gadolinium necessary for shoulder MR arthrography?
Wednesday, December 4 | 3:00 p.m.-3:10 p.m. | SSM17-01 | Room S105AB
Is saline or gadolinium the best option for an MR arthrogram to detect labral and rotator cuff injuries in the shoulder? To address that question, a team from Emory University conducted a retrospective study of patients who were referred over the course of 18 months for shoulder issues.
Cardiac MRI T1 mapping adds value to Fabry disease
Wednesday, December 4 | 3:50 p.m.-4:00 p.m. | SSM03-06 | Room S401CD
The value of cardiac MRI with T1 mapping in determining the diagnosis, treatment, and prognosis of Fabry disease is the topic of this Wednesday afternoon session.
3D MRI, CT software right for coronary artery disease
Thursday, December 5 | 11:00 a.m.-11:10 a.m. | SSQ03-04 | Room E450B
Swiss and German researchers have developed 3D multimodal image fusion software that merges MRI perfusion and late gadolinium enhancement results with coronary CT angiography and CT-derived fractional flow reserve.
How low can MRI go and still image lung disease?
Thursday, December 5 | 11:00 a.m.-11:10 a.m. | SSQ05-04 | Room E350
Researchers from the U.S. National Institutes of Health are following the adage "less is more" in their development of a 0.55-tesla MRI system for lung imaging.
Parenchymal enhancement on MRI linked to breast cancer risk
Thursday, December 5 | 11:10 a.m.-11:20 a.m. | SSQ01-05 | Room S406B
In this award-winning session, University of Pittsburgh researchers will discuss how background parenchymal enhancement imaged by dynamic contrast-enhanced breast MRI provides additional diagnostic information compared with using tumor-derived radiomics data alone.
How can MRI help assess underdeveloped fetuses?
Thursday, December 5 | 11:30 a.m.-11:40 a.m. | SSQ09-07 | Room E351
When fetuses do not grow and develop adequately in the womb, clinicians and obstetricians can turn to MRI for a noninvasive view of the problem, according to this Thursday morning presentation.
MRI sequences combine for easy-breathing lung perfusion
Thursday, December 5 | 11:40 a.m.-11:50 a.m. | SSQ05-08 | Room E350
Clinicians never run out of ways to tweak MRI with a multitude of imaging sequences. This Thursday session will cover two sequences recently put to the test for lung perfusion.
DTI-MRI looks good for prenatal white-matter evaluation
Thursday, December 5 | 11:50 a.m.-12:00 p.m. | SSQ09-09 | Room E351
Attendees of this RSNA session will learn why diffusion-tensor MR imaging (DTI-MRI) may be considered for investigating the major white-matter tracts of fetuses in the third trimester of pregnancy.
Call on MRI-guided biopsy for breast cancer treatment response
Friday, December 6 | 10:30 a.m.-10:40 a.m. | SST01-01 | Room E450A
MRI-guided biopsy is proficient at diagnosing a pathological complete response after neoadjuvant chemotherapy for breast cancer, according to this proof-of-concept clinical trial.
Why do so few women follow up on MRI-guided biopsies?
Friday, December 6 | 10:40 a.m.-10:50 a.m. | SST01-02 | Room E450A
Very few women heed the recommendation to follow up a benign MRI-guided breast biopsy with an MRI scan six or 12 months later. The question is: What's stopping them?
MRI spine reports need this information
Friday, December 6 | 10:50 a.m.-11:00 a.m. | SST05-03 | Room E450B
What should be included in an MRI spine report? Spinal canal dimensions and details of nerve root anomalies and disk herniation -- to name a few items on the radiology wish list, according to this Friday morning presentation.
VI-RADS complements mpMRI for bladder cancer
Friday, December 6 | 11:50 a.m.-12:00 p.m. | SST04-09 | Room E350
Adding the Vesical Imaging-Reporting and Data System (VI-RADS) to multiparametric MRI (mpMRI) scans could be a boon for evaluating bladder cancer.