Focused Ultrasound May Open Door to Alzheimer's Treatment (image) Radiological Society of North America Share Print E-Mail Caption MRI and fused CT image shows three target sites selected in the brain within the hippocampus, a structure critical for memory and affected in patients with Alzheimer's disease. Credit Study author and RSNA Usage Restrictions May use with credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.