Serial scintigraphic assessment of iodine-123 metaiodobenzylguanidine lung uptake in a patient with high-altitude pulmonary edema.
Iodine-123 metaiodobenzylguanidine ((123)I-MIBG) can be considered an indicator of pulmonary endothelial cell function. Serial (123)I-MIBG images of the chest were acquired in a patient with high altitude pulmonary edema (HAPE). The initial evaluation was performed 7 days after admission. The lung to upper mediastinum ratios (LMRs) of (123)I-MIBG uptake were 1.33 (for the right lung) and 1.12 (for the left lung). The second examination of (123)I-MIBG lung uptake, which was performed 2 months later, showed LMRs of 1.39 (right lung) and 1.33 (left lung). We speculated that the decreased lung uptake of (123)I-MIBG at the early recovery stage could reflect an impairment in pulmonary endothelial cell metabolic function in the development of HAPE.
Koizumi
T
T
First Department of Internal Medicine, Shinshu University School of Medicine, Asahi Matsumoto, Japan. keishik@gipac.shinshu-u.ac.jp
Kubo
K
K
Hanaoka
M
M
Yamamoto
H
H
Yamaguchi
S
S
Fujii
T
T
Kobayashi
T
T
D019797:3-Iodobenzylguanidine; D000532:Altitude Sickness / Q000000981:diagnostic imaging* / Q000503:physiopathology; D004730:Endothelium, Vascular / Q000000981:diagnostic imaging / Q000503:physiopathology; D004734:Energy Metabolism / Q000502:physiology; D006801:Humans; D007457:Iodine Radioisotopes; D008168:Lung / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011654:Pulmonary Edema / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011877:Radionuclide Imaging; D012680:Sensitivity and Specificity
D007457:Iodine Radioisotopes; D019797:3-Iodobenzylguanidine