{
  "ptid_time": "094_S_2201_2011-01-03",
  "img_path": "/data/qiuhui/data/adni/images/094_S_2201/2011-01-03/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:** The brain volumes are largely within normal ranges, with only the entorhinal cortex slightly below the reference mean but still classified as normal. Cognitive scores (MMSE 30, MoCA 27) are intact, and biomarkers (T-tau, P-tau, AV45) are normal. No significant atrophy or pathological markers suggest cognitive impairment.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T10:24:51.482552"
}