Objective The purpose of this study was to compare if non-physician, inexperienced ultrasound subjects can take quality diagnostic images after watching a brief educational video and using reference cue cards (autonomous group) versus taking ultrasound images with expert guidance using a satellite connection. Methods Six non-medical, inexperienced ultrasound subjects from a rural area (Arctic Circle) obtained ultrasound images of target anatomic regions using a portable ultrasound device after receiving expert-guided training or autonomous training (educational video and cue cards). Real-time expert guidance was provided using an audiovisual tele-ultrasound connection with direct ultrasound video compression which was relayed to a remote expert via a secure satellite connection. The resultant images from all studies were blindly reviewed by imaging experts for determination of diagnostic adequacy. Results All of the examinations were completed in \15 min. The blinded expert identified 85.1% of autonomously acquired images and 86.2% of the images obtained by expert guidance to be of diagnostic quality; there was no statistical difference between the two groups (P = 0.6653). Conclusion Non-physician, inexperienced subjects can quickly educate themselves to retrieve diagnostic quality ultrasound images whether they are being expert-guided or trained autonomously.

The addition of a fusion MRI/US image enhances radiology residents' ability to identify MSK US anatomy accurately compared with the sonogram alone. The medical students, however, did not show improvement with the addition of the fusion MRI/sonogram. 2014.

We report three cases of intra-articular infection which followed injection for magnetic resonance arthrography. In an effort to reduce the risk of arthrogram related infection, representatives from radiology, infectious disease medicine, and microbiology departments convened to analyze the contributing factors. The proposed source was oral contamination from barium swallow studies which preceded the arthrogram injections in the same room. We propose safety measures to reduce incidence of arthrogram related infections.

SUMMARYThis study reports cerebral angiographic findings observed after stent retriever thrombectomy that is suggestive of a higher risk of hemorrhagic transformation (HT). A woman aged 65-75 presented with a right middle cerebral artery syndrome confirmed by non-contrast CT brain scan. Endovascular revascularization using the Solitaire device was placed across the thromboembolic occlusion and thromboembolectomy was performed. Angiography showed complete recanalization of the left internal carotid artery, anterior and middle cerebral artery branches. Twelve hours following the procedure the patient had a hemorrhagic conversion of the ischemic infarct with significant mass effect causing herniation. Despite surgical intervention (hemicraniectomy) the patient died. The angiographic features following revascularization of the vessels distal to the occlusion showed subtle dilations which were visualized at the branch points of the vessels. This may be a warning sign of increased risk of HT. BACKGROUND