{
  "ptid_time": "128_S_2036_2010-08-17",
  "img_path": "/data/qiuhui/data/adni/images/128_S_2036/2010-08-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,883 mm³, 28.9% below the reference mean. With a Z-score of -0.72 (23.5th percentile), this represents normal volume ; hippocampal volume measures 7,811 mm³, 1.6% above the reference mean. With a Z-score of 0.18 (57.3th percentile), this represents normal volume ; whole brain volume measures 1,019,100 mm³, 1.0% below the reference mean. With a Z-score of -0.12 (45.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,888 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.6th percentile), this represents normal volume ; fusiform gyrus volume measures 17,279 mm³, 5.1% below the reference mean. With a Z-score of -0.58 (28.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,127 mm³, 3.0% above the reference mean. With a Z-score of 0.26 (60.4th percentile), this represents normal volume . ",
  "text_data": "Age is 66.7 years. Gender is Female. Education: 14 years. MMSE: 28.0. MoCA: 30.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ); Total tau: 158.50 pg/mL (mild reduced); Phosphorylated tau: 14.65 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges (Z-scores close to 0, percentiles near 50th). Cognitive scores (MMSE 28, MoCA 30) are intact, and biomarkers (T-tau, P-tau, AV45) show no significant abnormalities. APOE4-negative status further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:57:44.830904"
}