Real-Time Ultrasound/MRI Fusion for Suprasacral Parallel Shift Approach to Lumbosacral Plexus Blockade and Analysis of Injectate Spread: An Exploratory Randomized Controlled Trial

<div>MRI of one subject visualizing spread of lidocaine-epinephrine added diluted contrast (magenta arrow) primarily lateral to the psoas major muscle (PMM), that is, in the<i> retroperitoneal compartment</i>, with minor seeping into the retropsoas subcompartment. (a) Sagittal plane. (b) Axial plane. (c) Coronal plane. Line (blue), position of coronal plane; Line (orange), position of sagittal plane; Line (purple), position of axial plane; S, sacral ala; VB L5, fifth lumbar vertebral body.</div>

BioMed Research International

fig5

Figure 5

Figure 5: Real-Time Ultrasound/MRI Fusion for Suprasacral Parallel Shift Approach to Lumbosacral Plexus Blockade and Analysis of Injectate Spread: An Exploratory Randomized Controlled Trial 

Figure 5 | Real-Time Ultrasound/MRI Fusion for Suprasacral Parallel Shift Approach to Lumbosacral Plexus Blockade and Analysis of Injectate Spread: An Exploratory Randomized Controlled Trial 