{
  "ptid_time": "032_S_0677_2012-09-24",
  "img_path": "/data/qiuhui/data/adni/images/032_S_0677/2012-09-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,071 mm³, 21.9% below the reference mean. With a Z-score of -0.53 (30.0th percentile), this represents normal volume ; hippocampal volume measures 8,111 mm³, 7.3% above the reference mean. With a Z-score of 0.71 (76.2th percentile), this represents normal volume ; whole brain volume measures 1,037,220 mm³, 3.9% below the reference mean. With a Z-score of -0.51 (30.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,162 mm³, 1.5% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume ; fusiform gyrus volume measures 19,307 mm³, 2.5% above the reference mean. With a Z-score of 0.21 (58.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,935 mm³, 1.9% below the reference mean. With a Z-score of -0.17 (43.2th percentile), this represents normal volume . ",
  "text_data": "Age is 76.8 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1622.00 pg/mL (moderate elevated); Total tau: 180.40 pg/mL (normal ); Phosphorylated tau: 16.45 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges based on Z-scores and percentiles. While Aβ is moderately elevated, T-tau and P-tau are normal, and cognitive scores (MMSE 30, MoCA 25) do not indicate significant impairment.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (Aβ elevation raises some concern, but normal biomarkers and cognition support CN)",
  "timestamp": "2025-07-26T04:57:04.470661"
}