{
  "ptid_time": "023_S_4448_2013-02-28",
  "img_path": "/data/qiuhui/data/adni/images/023_S_4448/2013-02-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,258 mm³, 22.7% below the reference mean. With a Z-score of -0.57 (28.5th percentile), this represents normal volume ; hippocampal volume measures 8,238 mm³, 7.2% above the reference mean. With a Z-score of 0.81 (79.1th percentile), this represents normal volume ; whole brain volume measures 1,049,700 mm³, 2.0% above the reference mean. With a Z-score of 0.25 (59.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,050 mm³, 4.0% above the reference mean. With a Z-score of 0.31 (62.3th percentile), this represents normal volume ; fusiform gyrus volume measures 18,467 mm³, 1.4% above the reference mean. With a Z-score of 0.16 (56.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,637 mm³, 10.3% above the reference mean. With a Z-score of 0.92 (82.0th percentile), this represents normal volume . ",
  "text_data": "Age is 64.8 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 24.0. Logical Memory: 17.0. Laboratory findings: Vitamin B12: 1180.00 (profound elevated); Creatinine (Rate Blanked): 1.40 (significant elevated); Urea Nitrogen: 29.00 (significant elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores and percentiles indicating no significant atrophy. Cognitive scores (MMSE: 29, MoCA: 24) are borderline for MCI but not dementia, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (MoCA score is slightly below the typical cutoff for normal cognition, but structural imaging is unremarkable)",
  "timestamp": "2025-07-26T03:05:29.133518"
}