{
  "ptid_time": "128_S_0272_2008-04-30",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0272/2008-04-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,624 mm³, 5.1% below the reference mean. With a Z-score of -0.12 (45.3th percentile), this represents normal volume ; hippocampal volume measures 8,115 mm³, 14.1% above the reference mean. With a Z-score of 1.29 (90.1th percentile), this represents mild enlargement; whole brain volume measures 1,115,910 mm³, 14.5% above the reference mean. With a Z-score of 1.82 (96.6th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,989 mm³, 8.6% above the reference mean. With a Z-score of 0.53 (70.1th percentile), this represents normal volume ; fusiform gyrus volume measures 19,269 mm³, 13.3% above the reference mean. With a Z-score of 1.21 (88.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 24,751 mm³, 29.1% above the reference mean. With a Z-score of 2.53 (99.4th percentile), this represents significant enlargement. ",
  "text_data": "Age is 72.4 years. Gender is Female. Education: 19 years. MMSE: 30.0. Logical Memory: 18.0. Laboratory findings: MCH: 26.00 (significant reduced); Eosinophils: 0.51 (profound elevated); Eosinophils: 6.10 (significant elevated); Serum Glucose: 124.00 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.13 SUVR (mild reduced); Amyloid beta: 1270.00 pg/mL (normal ); Total tau: 261.90 pg/mL (normal ); Phosphorylated tau: 23.27 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show no atrophy in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus) and are instead enlarged compared to reference means. Biomarkers (Aβ, T-tau, P-tau) are normal, and cognitive performance (MMSE 30/30) is intact. No genetic risk (APOE4 negative).  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:44:00.330835"
}