{
  "ptid_time": "016_S_4951_2019-05-23",
  "img_path": "/data/qiuhui/data/adni/images/016_S_4951/2019-05-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,487 mm³, 5.1% above the reference mean. With a Z-score of 0.12 (54.6th percentile), this represents normal volume ; hippocampal volume measures 7,550 mm³, 6.1% above the reference mean. With a Z-score of 0.56 (71.3th percentile), this represents normal volume ; whole brain volume measures 982,967 mm³, 0.9% above the reference mean. With a Z-score of 0.11 (54.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,779 mm³, 2.9% above the reference mean. With a Z-score of 0.18 (57.0th percentile), this represents normal volume ; fusiform gyrus volume measures 16,917 mm³, 0.6% below the reference mean. With a Z-score of -0.05 (48.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,741 mm³, 8.2% above the reference mean. With a Z-score of 0.71 (76.2th percentile), this represents normal volume . ",
  "text_data": "Age is 78.4 years. Gender is Female. Education: 14 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 19.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.11 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores close to or slightly above the mean. Cognitive assessments (MMSE: 30, MoCA: 28) indicate no impairment, and amyloid PET (AV45) is normal.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T00:36:21.228106"
}