BSIBlood Sensitive Imaging

Contrast from Deoxygenated BloodHitachi Echelon provides a non-contrast imaging solution that uses deoxygenated blood as a natural contrast agent. Blood Sensitive Imaging (BSI) ex-ploits the magnetic susceptibility of deoxyhemoglo-bin to produce high resolution venographic images.

Venous blood, hemorrhage and iron storage can all be depicted using BSI.

BSI Technology• 3D RSSG-EPI (RF Spoiled Steady State Gradient

Echo – Echo Planer Imaging) Sequence• T2* weighting – sensitive to differences in

magnetic susceptibility of adjacent tissues• Magnitude image created from sliding MinIP

(Minimum Intensity Projection)• Phase image acquisition and display also available

BSI Advantages• Non-contrast Imaging Technique• Low distortion with HOAST, Higher Order Active

Shimming Technology• Detection of micro-bleeds• High resolution and thin slices

BSI Magnitude Image - Minimum Intensity Projection (MinIP)

Potential Applications• Small Vessel Imaging• Hemorrhage Detection• Traumatic Brain Injury (TBI)• Stroke• Multiple Sclerosis• Enhanced Detection of Tumors

BSIBlood sensitive imaging can reveal hidden pathology

Case Study: Echelon BSI image depicts an area of internal bleeding due to a Traumatic Brain Injury (TBI).

Pathology is not as evident in conventional imaging techniques shown to the right.

BSI MinIP

T1 Spin Echo T1 Flair

T2 Fast Spin Echo T2 Gradient Echo

Case Study: Microbleeds are conspicuous in the BSI minIP (circles).

Pathology is difficult to discern in conventional sequences shown to the right.

Hitachi Medical Systems America, Inc. 1959 Summit Commerce Park, Twinsburg, Ohio 44087 USA Tel: 330.425.1313 800.800.3106 Fax: 330.425.1410 www.HitachiMed.com info@HitachiMed.com

HitachiMed.com800.800.3106

2011 All Rights Reserved. Printed in the U.S.A. 0311/2000/DM# 77126 v2

Hitachi reserves the right to change specifications described herein without prior notice. This document provides general technical descriptions of both optional and standard features.

BSI MinIP

T1 Spin Echo

T2 Fast Spin Echo

PD Weighted

Diffusion Weighted