Related Experiment Video
Updated: Oct 11, 2025

Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology
Published on: September 28, 2022
The Radiology Lecture Exchange (RALEX): A Virtual Visiting Professorship Platform for All
Vivek Yedavalli1, Jenny K Hoang1, Christine Glastonbury2
1Department of Radiology and Radiological Sciences, Division of Neuroradiology, Johns Hopkins School of Medicine.
Abstract:
Visiting Professorships (VPs) have significant benefits for both the guest lecturer and host institution. Such opportunities increase knowledge dissemination, research collaboration, opportunities for junior faculty members, and educational material that shores up perceived weaknesses in the host institution's training program. While VPs provide these benefits, such invitations are often costly due to travel and accommodation expenses, which can be challenging for host institutions. The COVID-19 pandemic - with the forced social and work distancing - has mandated that radiologists rethink how they interact and collaborate within their department and also within the larger medical and radiology communities. Virtual platforms have become critical for communication and education, and in this altered academic environment have provided an opportunity for us to redesign how VPs are designed. The virtual VP removes many of the cost and time burdens associated with travel and even enables greater communication where it might not have been economically or time-feasible. We present a virtual Microsoft Teams (Redmond, WA) based platform for facilitating VPs in all subspecialties and for all ranks called the Radiology Lecture Exchange.
Related Concept Videos
Positron Emission Tomography
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
Radiation: Applications
The average...
Radiological Investigation I: X-ray and CT
X-ray Imaging
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

