{
  "ptid_time": "002_S_6030_2017-06-15",
  "img_path": "/data/qiuhui/data/adni/images/002_S_6030/2017-06-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,562 mm³, 25.9% below the reference mean. With a Z-score of -0.65 (25.9th percentile), this represents normal volume ; hippocampal volume measures 7,971 mm³, 3.7% above the reference mean. With a Z-score of 0.42 (66.2th percentile), this represents normal volume ; whole brain volume measures 1,063,280 mm³, 3.3% above the reference mean. With a Z-score of 0.41 (66.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,135 mm³, 6.2% above the reference mean. With a Z-score of 0.48 (68.5th percentile), this represents normal volume ; fusiform gyrus volume measures 18,462 mm³, 1.4% above the reference mean. With a Z-score of 0.16 (56.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,976 mm³, 2.2% above the reference mean. With a Z-score of 0.20 (57.8th percentile), this represents normal volume . ",
  "text_data": "Age is 65.1 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 29.0. Logical Memory: 11.0. 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: 29) are also normal, and amyloid PET (AV45) is negative. The presence of one APOE4 allele does not override the absence of structural or cognitive abnormalities.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:36:19.017410"
}