Lateralization of cerebral blood flow in the auditory cortex of patients with idiopathic tinnitus and healthy controls: An arterial spin labeling study.

Autor:	Li X; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Zhao Y; Department of MRI Room, Kailuan General Hospital, Tangshan, Hebei, China., Hui Y; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Wu Y; Department of Cardiology, Kailuan General Hospital, Tangshan, Hebei, China., Chen Q; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Shi H; Department of Rheumatology and Immunology, Kailuan General Hospital, Tangshan, Hebei, China., Lv H; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Li M; Department of MRI Room, Kailuan General Hospital, Tangshan, Hebei, China., Zhao P; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Zhang W; Department of MRI Room, Kailuan General Hospital, Tangshan, Hebei, China., Zhao X; Clinical Epidemiology and Evidence-Based Medicine Unit, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Li J; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Cui L; Department of Rheumatology and Immunology, Kailuan General Hospital, Tangshan, Hebei, China., Wang Z; Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Jazyk:	angličtina
Zdroj:	Frontiers in neuroscience [Front Neurosci] 2022 Dec 07; Vol. 16, pp. 992758. Date of Electronic Publication: 2022 Dec 07 (Print Publication: 2022).
DOI:	10.3389/fnins.2022.992758
Abstrakt:	Objectives: To assess the lateralization of cerebral blood flow (CBF) in the auditory cortex of idiopathic tinnitus patients and healthy controls (HCs) using 3D pseudocontinuous arterial spin labeling (pcASL). Methods: Thirty-six patients with idiopathic tinnitus and 43 sex- and age-matched HCs underwent 3D-pcASL scanning using a 3.0 T MRI system. For both groups, region of interest analysis was performed on the primary auditory cortex (PAC), auditory associative cortex (AAC), and secondary auditory cortex (SAC). The clinical data of all subjects were analyzed. Results: In both tinnitus patients and HCs, CBF of the left PAC was significantly higher than that of the right (HCs: P = 0.02; patients: P = 0.043), but CBF of the right AAC and SAC was significantly higher than that of the left (AAC: HCs, P < 0.001; patients: P < 0.001. SAC: HCs, P < 0.001; patients: P = 0.001). Compared with HCs, tinnitus patients exhibited significantly higher CBF in the bilateral PAC (right: P = 0.008; left: P = 0.022). CBF in the left PAC was positively correlated with tinnitus severity ( r = 0.399, P = 0.016). Conclusion: This study confirms the asymmetry of the auditory cortex and investigates the underlying neuropathology of idiopathic tinnitus in terms of CBF. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2022 Li, Zhao, Hui, Wu, Chen, Shi, Lv, Li, Zhao, Zhang, Zhao, Li, Cui and Wang.)
Databáze:	MEDLINE
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