Congratulations to Abdominal Imaging Fellow Dr. Elizabeth Maddox, Radiology Resident Dr. B. Dustin Pooler, and second year medical student Kyle Malecki on winning 2016 Radiological Society of North America (RSNA) Student Travel Awards for young investigators!
Dr. Maddox's electronic scientific presentation titled "Ultrasound (US) of Indeterminate Adnexal Cysts: Incidence of Ovarian Cancer" will be presented at the RSNA 2016 Annual Meeting in Chicago, IL, on Monday, November 28 at 12:15 p.m. This work is part of an ongoing project with her co-fellow, Ashley Cahoon, MD, and her mentors, Drs. Elizabeth Sadowski and Jessica Robbins. The goals of their research are to evaluate the outcomes of sonographically indeterminate adnexal lesions and determine what role MRI plays in guiding clinicians in the care of these women. The ultimate hope is to catch ovarian cancers at an earlier and more treatable stage.
Two others from UW-Madison, B. Dustin Pooler, MD, a fourth-year radiology resident, and Kyle Malecki, an MD candidate, also received the RSNA Student Travel Award. Dr. Pooler will be presenting a paper titled “Prospective Evaluation of Reduced Dose Computed Tomography for the Detection of Low-contrast Liver Lesions” on Tuesday, November 29 at 11:10 a.m. Kyle Malecki will be giving a presentation titled “Accuracy of Liver Surface Nodularity Quantification at MDCT as a Noninvasive Biomarker for Staging Liver Fibrosis” on Sunday, November 27 at 11:05 a.m.
Dr. Pooler’s research revolves around attempting to use lower-dose CT techniques while still maintaining accurate diagnoses in situations where the imaging target has naturally low contrast with the background. “The conclusion to be drawn is that while reduced dose CT techniques and reconstruction algorithms are very promising for some imaging scenarios, we as radiologists must be careful in our application of ‘low dose’ imaging, as ambitious dose reduction may not be appropriate in all situations,” Dr. Pooler explained.
Kyle Malecki has worked with Drs. Megan Lubner and Perry Pickhardt on his research. The goal of this research, Kyle explained, was "to determine the predictive value of a new tool, called Liver Surface Nodularity, to measure the degree of hepatic fibrosis on cross-sectional CT images." Currently, the gold standard for assessing liver fibrosis is the liver biopsy which is an invasive procedure that presents certain risks to the patient. The study demonstrated strong results in carrying out that task, comparable to other non-invasive methods. According to Kyle, the research has several implications including that this tool "could be used retrospectively in patients with liver disease to non-invasively stage fibrosis, and could be used to monitor therapies over time without the need for repeat liver biopsies", reducing risk to the patient.
The Travel Awards are new for RSNA in 2016. In February of this year the RSNA Board of Directors announced the creation of the Travel Award Program with the hope of easing the expenses young investigators face while traveling to RSNA. Of all the young investigators who have been invited to share their work at the meeting, the top 400 have been offered the award.
David is a good friend and colleague to many in our department, and I count myself fortunate to know him for more than 20 years. Born and raised in Brookfield Wisconsin, David received his undergraduate degree in Chemical Engineering from UW-Madison and is a true Badger at heart. He has made numerous contributions to our field in his role as Professor of Radiology at Johns Hopkins (1993-2008) where he served as Chief of MRI, and as Senior Investigator and Radiologist-in-Chief at the National Institutes of Health Clinical Sciences Center since 2008.
“I have always felt that Radiology at Madison has encompassed the best of medicine, science, and technology – in close combination with collegiality and professionalism,” Dr. Bluemke recently commented. “I am thrilled to bring the journal Radiology to the UW, and look forward to working with the Radiology staff both on the journal activities and departmental mission.”
Dr. Bluemke will have a full time appointment as Professor of Radiology in our department beginning July 1, 2017, with funding from the RSNA to support his role as Editor. While David’s editorial duties will undoubtedly be his primary focus and constitute 80% of his effort, our department will partner with the RSNA to insure that Dr. Bluemke has the opportunity to continue his strong connection to clinical and academic radiology at a local level for the remainder of his time. Dr. Bluemke and the RSNA will work together to move the headquarters of the journal to Madison. He and his wife Bonnie are looking forward to moving back “home” to the great state of Wisconsin.
One important factor in his decision to join our department is the high quality and outstanding clinical and academic productivity of our faculty and staff in both Radiology and Medical Physics at the University of Wisconsin School of Medicine and Public Health. Dr. Bluemke anticipates many opportunities for our faculty and staff to contribute to the mission of the journal, and I know that we will benefit from his expertise and the knowledge of all the visitors to the journal headquarters.
- Tom Grist, MD, FACR
Read more about Dr. Bluemke’s appointment with RSNA at RSNA.org
A new analysis of screening intervals for CT colonography (CTC) found that it may be safe to wait as long as five to ten years to screen again after an initial negative scan. The results are good news for the cost-effectiveness profile of CTC, investigators report in Radiology.
The group from the University of Wisconsin-Madison led by Drs. Perry Pickhardt, Dustin Pooler (4th year resident), and David Kim of the Department of Radiology, Dr. Ifeanyi Mbah of the Department of Obstetrics and Gynecology, and Dr. Jennifer Weiss of the Department of Medicine, analyzed results from 1,429 patients who returned for repeat screening CTC more than five years, on average, after their initial negative CTC exam. They compared the CTC findings at follow-up with the initial screening and found fewer advanced lesions than usual and just two small cancers in the cohort.
Pickhardt and colleagues analyzed the results of all patients who had positive findings at follow-up, comparing them with the initial CTC results. Positive findings were defined as polyps 6 mm or larger, a threshold that typically requires follow-up.
At follow-up CTC, the percentage of patients with positive results (12.1%) was lower than the percentage of patients (14.3%) who were positive on initial screening.
"The interval cancer rate at routine CT colonography surveillance was lower than the cancer rate seen at initial screening, as well as the reported interval rates at [optical colonoscopy]," the team wrote.
The results support the five- to ten-year screening interval for CTC suggested in the 2005 CT Colonography Reporting and Data System (C-RADS) recommendations from the University of Wisconsin-Madison, according to lead author and Professor of Radiology Dr. Perry Pickhardt. "Going beyond five years further improves cost-effectiveness," he added.