"Occipital Tunnel" Sign on FDG PET for Differentiating Dementias

David M. Sawyer; Phillip H. Kuo

doi:10.1097/RLU.0000000000001925

"Occipital Tunnel" Sign on FDG PET for Differentiating Dementias

David M. Sawyer, Phillip H. Kuo

Medical Imaging

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

PET using FDG is a critical tool for evaluation of dementias, with characteristic patterns of hypometabolism suggesting specific diagnoses. Hypometabolism in the occipital region is recognized as an important finding associated with dementia with Lewy bodies and posterior cortical atrophy. We describe here the novel "occipital tunnel" sign, which results from relative sparing of FDG uptake in the medial occipital (primary visual) cortex compared with more severe loss in the surrounding lateral occipital (visual association) cortex. This sign is useful for recognizing the occipital findings of dementia with Lewy bodies and posterior cortical atrophy, especially when viewing sagittal projections.

Original language	English (US)
Pages (from-to)	e59-e61
Journal	Clinical Nuclear Medicine
Volume	43
Issue number	2
DOIs	https://doi.org/10.1097/RLU.0000000000001925
State	Published - Feb 1 2018

Keywords

Alzheimer disease
dementia
dementia with Lewy bodies
FDG PET
neurodegenerative disease
posterior cortical atrophy

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

Access to Document

10.1097/RLU.0000000000001925

Fingerprint Dive into the research topics of '"Occipital Tunnel" Sign on FDG PET for Differentiating Dementias'. Together they form a unique fingerprint.

Cite this

@article{3621efd5b47f4f8e8366b7fa53942404,

title = "{"}Occipital Tunnel{"} Sign on FDG PET for Differentiating Dementias",

abstract = "PET using FDG is a critical tool for evaluation of dementias, with characteristic patterns of hypometabolism suggesting specific diagnoses. Hypometabolism in the occipital region is recognized as an important finding associated with dementia with Lewy bodies and posterior cortical atrophy. We describe here the novel {"}occipital tunnel{"} sign, which results from relative sparing of FDG uptake in the medial occipital (primary visual) cortex compared with more severe loss in the surrounding lateral occipital (visual association) cortex. This sign is useful for recognizing the occipital findings of dementia with Lewy bodies and posterior cortical atrophy, especially when viewing sagittal projections.",

keywords = "Alzheimer disease, dementia, dementia with Lewy bodies, FDG PET, neurodegenerative disease, posterior cortical atrophy",

author = "Sawyer, {David M.} and Kuo, {Phillip H.}",

year = "2018",

month = feb,

day = "1",

doi = "10.1097/RLU.0000000000001925",

language = "English (US)",

volume = "43",

pages = "e59--e61",

journal = "Clinical Nuclear Medicine",

issn = "0363-9762",

publisher = "Lippincott Williams and Wilkins",

number = "2",

}

TY - JOUR

T1 - "Occipital Tunnel" Sign on FDG PET for Differentiating Dementias

AU - Sawyer, David M.

AU - Kuo, Phillip H.

PY - 2018/2/1

Y1 - 2018/2/1

N2 - PET using FDG is a critical tool for evaluation of dementias, with characteristic patterns of hypometabolism suggesting specific diagnoses. Hypometabolism in the occipital region is recognized as an important finding associated with dementia with Lewy bodies and posterior cortical atrophy. We describe here the novel "occipital tunnel" sign, which results from relative sparing of FDG uptake in the medial occipital (primary visual) cortex compared with more severe loss in the surrounding lateral occipital (visual association) cortex. This sign is useful for recognizing the occipital findings of dementia with Lewy bodies and posterior cortical atrophy, especially when viewing sagittal projections.

AB - PET using FDG is a critical tool for evaluation of dementias, with characteristic patterns of hypometabolism suggesting specific diagnoses. Hypometabolism in the occipital region is recognized as an important finding associated with dementia with Lewy bodies and posterior cortical atrophy. We describe here the novel "occipital tunnel" sign, which results from relative sparing of FDG uptake in the medial occipital (primary visual) cortex compared with more severe loss in the surrounding lateral occipital (visual association) cortex. This sign is useful for recognizing the occipital findings of dementia with Lewy bodies and posterior cortical atrophy, especially when viewing sagittal projections.

KW - Alzheimer disease

KW - dementia

KW - dementia with Lewy bodies

KW - FDG PET

KW - neurodegenerative disease

KW - posterior cortical atrophy

UR - http://www.scopus.com/inward/record.url?scp=85040792522&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040792522&partnerID=8YFLogxK

U2 - 10.1097/RLU.0000000000001925

DO - 10.1097/RLU.0000000000001925

M3 - Article

C2 - 29232244

AN - SCOPUS:85040792522

VL - 43

SP - e59-e61

JO - Clinical Nuclear Medicine

JF - Clinical Nuclear Medicine

SN - 0363-9762

IS - 2

ER -