{
  "ptid_time": "023_S_4020_2011-05-03",
  "img_path": "/data/qiuhui/data/adni/images/023_S_4020/2011-05-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,846 mm³, 37.2% below the reference mean. With a Z-score of -0.88 (18.8th percentile), this represents normal volume ; hippocampal volume measures 8,221 mm³, 2.4% above the reference mean. With a Z-score of 0.24 (59.5th percentile), this represents normal volume ; whole brain volume measures 1,197,590 mm³, 5.6% above the reference mean. With a Z-score of 0.79 (78.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,042 mm³, 5.2% below the reference mean. With a Z-score of -0.36 (36.0th percentile), this represents normal volume ; fusiform gyrus volume measures 22,013 mm³, 10.6% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,939 mm³, 6.8% above the reference mean. With a Z-score of 0.56 (71.3th percentile), this represents normal volume . ",
  "text_data": "Age is 66.5 years. Gender is Male. Education: 16 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 12.0. Laboratory findings: Basophils: 0.13 (profound elevated); Basophils: 2.00 (profound elevated); Creatinine (Rate Blanked): 1.60 (profound elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ); Total tau: 265.00 pg/mL (normal ); Phosphorylated tau: 24.15 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 29, MoCA 25) are also within normal limits, and biomarkers (T-tau, P-tau, AV45) are normal. No significant atrophy or pathological markers are present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T02:59:50.262200"
}