{
  "ptid_time": "073_S_4540_2012-02-10",
  "img_path": "/data/qiuhui/data/adni/images/073_S_4540/2012-02-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,360 mm³, 41.7% below the reference mean. With a Z-score of -0.96 (17.0th percentile), this represents normal volume ; hippocampal volume measures 6,592 mm³, 7.3% below the reference mean. With a Z-score of -0.67 (25.0th percentile), this represents normal volume ; whole brain volume measures 999,230 mm³, 2.5% above the reference mean. With a Z-score of 0.32 (62.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,834 mm³, 4.4% above the reference mean. With a Z-score of 0.27 (60.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,251 mm³, 13.2% above the reference mean. With a Z-score of 1.20 (88.4th percentile), this represents mild enlargement; middle temporal gyrus volume measures 18,317 mm³, 4.4% below the reference mean. With a Z-score of -0.39 (35.0th percentile), this represents normal volume . ",
  "text_data": "Age is 71.1 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Alcohol Abuse; Smoking; Malignancy; Major Surgical Procedures. MMSE: 29.0. MoCA: 25.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ); Total tau: 194.80 pg/mL (normal ); Phosphorylated tau: 18.67 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges or mildly enlarged (fusiform gyrus). Biomarkers (T-tau, P-tau, AV45) are normal, and cognitive scores (MMSE 29, MoCA 25) are intact for age, with no APOE4 risk allele.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:48:28.284522"
}