Regional cortical thinning and cerebral hypoperfusion in patients with panic disorder.

Abstract:

BACKGROUND:Although recent neuroimaging studies have suggested that functional deficits in facial perception are associated with panic disorder (PD), the possibility of cortical thickness and perfusion abnormalities have not been studied in patients with PD. We aimed to investigate alterations in cortical thickness and regional cerebral blood flow (CBF) between PD patients and healthy controls (HCs) using three-dimensional (3D) T1-weighted magnetic resonance imagery (MRI) and 3D arterial spin labeling (ASL) perfusion MRI. METHOD:An automated surface-based method (Cat12) measured the cortical thickness of each subject. Z-score normalization for CBF maps was used to generate Z-score maps. Statistical comparisons were performed using statistical parametric mapping with two-sample t-tests. RESULTS:Subjects with PD, unlike HCs, displayed cortical thinning in the right fusiform gyrus (FG). Post hoc analysis also revealed a decreased Z-score in the right FG. There was significant positive correlation between the Z-score and the cortical thickness of the right FG. The cortical thickness and Z-score were negatively correlated with the Panic Disorder Severity Scale and Hamilton Rating Scale for Anxiety scores. LIMITATIONS:The small sample size may have restricted the identification of additional differences. Other caveats included the use of medication by nine participants. CONCLUSIONS:These results provide further evidence of the significant role structural and functional deficits in the right FG play in patients with PD. Due to the observed regional specificity, this finding bears important clinical implications for potential treatment strategies.

journal_name

J Affect Disord

authors

Ni MF,Wang XM,Wang HY,Chang Y,Huang XF,Zhang BW

doi

10.1016/j.jad.2020.07.139

subject

Has Abstract

pub_date

2020-12-01 00:00:00

pages

138-145

eissn

0165-0327

issn

1573-2517

pii

S0165-0327(20)32597-0

journal_volume

277

pub_type

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