Brain Scintigraphy.

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Presentation transcript:

Brain Scintigraphy

Brain Scintigraphy

Brain Scintigraphy

Brain Scintigraphy

Brain Scintigraphy Normals: Effects of Color Maps

Kansas University Brain Scintigraphy

Brain Scintigraphy

Brain Scintigraphy

Brain Scintigraphy

Brain Scintigraphy Decreased perfusion right side large CVA

Brain Scintigraphy Decreased activity on contralateral cerebellum Cross cerebellar dischisis

Brain Scintigraphy Luxury perfusion Occurs when there is increased blood flow and reduced O2 in brain tissue. Causes acute lactic-metabolic acidosis. Many different disease states can cause this: CVA, trauma, tumor, etc.

Brain Scintigraphy Diamoix HMPAO MRI Harvard Ischemia

Brain Scintigraphy Diamoix HMPAO Ischemia

Brain Scintigraphy Central area of infarction with regional ischemia. Revascularization?

Brain Scintigraphy Central area of infarction with regional ischemia. Revascularization?

Brain Scintigraphy Transverse Slices Tc99m HMPAO Normal

Transverse Slices Tc99m HMPAO Brain Scintigraphy Transverse Slices Tc99m HMPAO Globally decreased function (particularly pariatal lobes) /decreased gray mater Alzheimer's Disease

Transverse Slices Tc99m HMPAO Alzheimer's Disease Brain Scintigraphy Transverse Slices Tc99m HMPAO Alzheimer's Disease Transverse Slices Tc99m HMPAO Normal

Coronal Slices Tc99m HMPAO Brain Scintigraphy Coronal Slices Tc99m HMPAO Alzheimer's Disease

Sagittal Slices Tc99m HMPAO Brain Scintigraphy Sagittal Slices Tc99m HMPAO Alzheimer's Disease

Brain Scintigraphy Patchy diffuse areas of increased and decreased activity Differential diagnosis: Multi-infarct Dementia Cocaine Abuse

Diagnosis Cocaine abuse Brain Scintigraphy Initial scan Diagnosis Cocaine abuse 6 month follow-up

Brain Scintigraphy Brain Multi-infact Transverse

Brain Scintigraphy Increased perfusion to temporal lobe. Herpes Encephalitis

Brain Scintigraphy

Brain Scintigraphy melenoma MRI.1t2 Tl201

Brain Scintigraphy MRI / Tl201 Overlay Harvard

Brain Scintigraphy Melanoma HMPAO

Brain Scintigraphy MRI Tl201 HMPAO Melanoma

Brain Scintigraphy Melanoma HMPAO MRI Overlay

Brain Scintigraphy Glioblastoma

Brain Scintigraphy

Brain Scintigraphy Tl Brain SPECT Previous Radiation for Glioblastoma

Brain Scintigraphy 48 hours Mallincrodt Slow movement over convexities Activity in lateral ventricles NPH

Brain Scintigraphy Delayed movement over convexities at 48 hours.

Brain Scintigraphy Delayed movement over convexities at 48 hours. LEAP on posterior

Brain Scintigraphy 48 hr ant 48 hr rt 48 hr lt 24 hr ant 24 hour rt immediate Same patient with laterals

Brain Scintigraphy 4 hour 24 hour 48 hour

Brain Scintigraphy Shunt Patency

Brain Scintigraphy Non-patient Shunt At 20 minutes following injection of tracer into the shunt reservoir, activity is seen in the proximal limb tubing only. At 40 minutes, activity is seen in the lateral ventricles, and third and fourth ventricles, as well as extending down the spinal canal. Still, no activity is seen in the distal shunt.

Brain Scintigraphy Occluded Shunt?

Brain Scintigraphy Abdominal Images

Brain Scintigraphy Displaying the initial images at higher intensity allows visualization of tiny lymphatic channels draining activity away from an infiltrated dose

Brain Scintigraphy Flow study

Brain Scintigraphy Flow for brain death

Brain Scintigraphy Is this Brain Death? Return to the Table of Contents