{
  "ptid_time": "073_S_0089_2010-10-04",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0089/2010-10-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,133 mm³, 26.3% below the reference mean. With a Z-score of -0.62 (26.6th percentile), this represents normal volume ; hippocampal volume measures 7,536 mm³, 6.1% below the reference mean. With a Z-score of -0.61 (27.0th percentile), this represents normal volume ; whole brain volume measures 1,071,530 mm³, 5.6% below the reference mean. With a Z-score of -0.79 (21.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,909 mm³, 8.3% below the reference mean. With a Z-score of -0.57 (28.3th percentile), this represents normal volume ; fusiform gyrus volume measures 22,662 mm³, 13.8% above the reference mean. With a Z-score of 1.15 (87.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 23,488 mm³, 4.8% above the reference mean. With a Z-score of 0.40 (65.4th percentile), this represents normal volume . ",
  "text_data": "Age is 69.1 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Cardiovascular; Musculoskeletal; Gastrointestinal; Smoking; Major Surgical Procedures. MMSE: 30.0. MoCA: 25.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ); Amyloid beta: 1278.00 pg/mL (normal ); Total tau: 156.60 pg/mL (mild reduced); Phosphorylated tau: 14.62 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges, with only the fusiform gyrus showing mild enlargement. Cognitive screening (MMSE 30, MoCA 25) is normal to borderline, and biomarkers (Aβ, P-tau, AV45) are normal, with only T-tau mildly reduced. No significant structural or biomarker abnormalities suggest cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T09:28:52.365390"
}