{
  "ptid_time": "094_S_2201_2011-03-22",
  "img_path": "/data/qiuhui/data/adni/images/094_S_2201/2011-03-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,641 mm³, 32.7% above the reference mean. With a Z-score of 0.82 (79.3th percentile), this represents normal volume ; hippocampal volume measures 7,950 mm³, 3.5% above the reference mean. With a Z-score of 0.39 (65.1th percentile), this represents normal volume ; whole brain volume measures 1,021,920 mm³, 0.7% below the reference mean. With a Z-score of -0.09 (46.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,444 mm³, 11.5% below the reference mean. With a Z-score of -0.89 (18.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,717 mm³, 2.8% above the reference mean. With a Z-score of 0.31 (62.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,148 mm³, 1.8% below the reference mean. With a Z-score of -0.16 (43.6th percentile), this represents normal volume . ",
  "text_data": "Age is 63.7 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.99 SUVR (normal ); Total tau: 218.60 pg/mL (normal ); Phosphorylated tau: 18.14 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 30, MoCA 27) are within normal limits, and biomarkers (T-tau, P-tau, AV45) are normal. No significant atrophy or pathological markers are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T10:24:56.735535"
}