{
  "ptid_time": "941_S_4036_2011-05-10",
  "img_path": "/data/qiuhui/data/adni/images/941_S_4036/2011-05-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 10,402 mm³, 73.0% below the reference mean. With a Z-score of -1.75 (4.0th percentile), this represents moderate atrophy; hippocampal volume measures 8,053 mm³, 6.5% above the reference mean. With a Z-score of 0.64 (73.8th percentile), this represents normal volume ; whole brain volume measures 1,051,490 mm³, 2.6% below the reference mean. With a Z-score of -0.34 (36.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,251 mm³, 3.7% above the reference mean. With a Z-score of 0.25 (59.8th percentile), this represents normal volume ; fusiform gyrus volume measures 23,137 mm³, 22.8% above the reference mean. With a Z-score of 1.94 (97.4th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 19,231 mm³, 9.9% below the reference mean. With a Z-score of -0.89 (18.7th percentile), this represents normal volume . ",
  "text_data": "Age is 74.0 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 26.0. Logical Memory: 9.0. Laboratory findings: Vitamin B12: 966.00 (significant elevated); Total Bilirubin: 0.90 (significant elevated); Urea Nitrogen: 30.00 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ); Total tau: 245.00 pg/mL (normal ); Phosphorylated tau: 19.84 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The patient shows moderate ventricular atrophy (Z-score -1.75) but otherwise has normal hippocampal, whole brain, entorhinal cortex, and middle temporal gyrus volumes. The fusiform gyrus is moderately enlarged, which is atypical but not necessarily pathological. Cognitive scores (MMSE 29, MoCA 26) are within normal limits, and biomarkers (T-tau, P-tau, AV45) are normal.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (due to ventricular atrophy, but no other significant structural or biomarker abnormalities to suggest MCI or dementia)",
  "timestamp": "2025-07-26T17:32:38.034654"
}