Abstract #4271

SWAN Imaging Substantially Increases the Prevalence of Hemorrhage in the Wall of Brain Abscess -Its Implications in Clinical Interpretation

Rakesh Kumar Gupta¹, Vaishali Tomar¹, Rishi Awasthi¹, Vikas Bharadwaj², Bal Kishan Ojha², Nuzhat Husain³, Kashi Nath Prasad⁴, Ramesh Venkatesan⁵, Ram K. S. Rathore⁶

¹Radiodiagnosis, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India, Lucknow, Uttar Pradesh, India; ²Neurosurgery, Chatrapati Sahu ji Maharaj Medical University, Lucknow, Uttar Pradesh, India; ³Pathology, Chatrapati Sahu ji Maharaj Medical University, Lucknow, Uttar Pradesh, India; ⁴Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India, Lucknow, Uttar Pradesh, India; ⁵Wipro-GE Healthcare, Bangalore, Karnataka, India; ⁶Mathematics & Statistics, Indian Institute of Technology, Kanpur, Kanpur, Uttar Pradesh, India

A total of 26 patients with intracranial abscess underwent conventional MRI as well as DTI. A total of 13 patients showed hemorrhage on SWAN imaging out of which 11 were confirmed of having hemorrhage on Prussian blue staining. We conclude that the presence of intracellular iron affects the DTI metrics. The existence of hemorrhage in intracranial abscess is not rare and by including new sensitive MR sequences e.g. SWAN can potentially improve its demonstration on MRI.