The physiological accumulation of FDG in the muscles in relation to the side of intravenous administration.
OBJECTIVE
The purpose of the study was to evaluate the physiological accumulation of18F-FDG in the muscles in relation to the side of intravenous administration.


METHODS
We retrospectively investigated 3,11818F-FDG-PET/CT examinations. We evaluated the physiological accumulation of FDG in the muscles of the shoulder and arm relative to its dependence on the side of intravenous administration.


RESULTS
Six hundred six of the 3,118 examinations (19.4%) showed physiological accumulation of FDG in the teres minor muscle. Accumulation was seen on the side of administration in 486 examinations (80.2%), contralateral to the side of administration in 56 examinations (9.2%), and bilaterally in 64 examinations (10.6%). Five hundred seventy-seven of the 3,118 examinations (18.5%) showed accumulation of FDG in the muscles between the radioulna near the elbow. Accumulation was observed on the side of administration in 432 examinations (74.9%), contralateral to the side of the administration in 71 examinations (12.3%), and bilaterally in 74 examinations (12.8%).


CONCLUSIONS
The present study finds that not only accumulation in the teres minor muscles but also accumulation in the muscles between the radioulna near the elbow occurs significantly more frequently on the side of intravenous administration compared to the contralateral side.
Department of Radiology, Tokushima University Hospital, Tokushima, 2-50-1 Kuramoto-cho, Tokushima, 770-8503, Japan. otomi.yoichi@tokushima-u.ac.jp.
Yoichi
Y
Otomi
Department of Radiology, Tokushima University Hospital, Tokushima, 2-50-1 Kuramoto-cho, Tokushima, 770-8503, Japan.
Takayoshi
T
Shinya
Department of Radiology, Tokushima University Hospital, Tokushima, 2-50-1 Kuramoto-cho, Tokushima, 770-8503, Japan.
Naoto
N
Uyama
Department of Radiology, Tokushima Red Cross Hospital, Tokushima, Japan.
Yuta
Y
Arai
Department of Radiology, Tokushima University Hospital, Tokushima, 2-50-1 Kuramoto-cho, Tokushima, 770-8503, Japan.
Kanako
K
Miyamoto
Department of Radiology, Tokushima Red Cross Hospital, Tokushima, Japan.
Katsuya
K
Takechi
Department of Radiology, Tokushima University Hospital, Tokushima, 2-50-1 Kuramoto-cho, Tokushima, 770-8503, Japan.
Michiko
M
Kubo
Department of Medical Imaging/Nuclear Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Hideki
H
Otsuka
Department of Radiology, Tokushima University Hospital, Tokushima, 2-50-1 Kuramoto-cho, Tokushima, 770-8503, Japan.
Masafumi
M
Harada
D061605:Administration, Intravenous; D000368:Aged; D001132:Arm / Q000000981:diagnostic imaging; D005260:Female; D019788:Fluorodeoxyglucose F18 / Q000008:administration & dosage / Q000493:pharmacokinetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging*; D000072078:Positron Emission Tomography Computed Tomography; D019275:Radiopharmaceuticals / Q000008:administration & dosage / Q000493:pharmacokinetics*; D012189:Retrospective Studies; D017006:Rotator Cuff / Q000000981:diagnostic imaging
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18
Accumulation between the radioulna near the elbow; FDG; FDG injection; Physiological accumulation; Teres minor muscle