{
  "ptid_time": "941_S_4365_2014-04-03",
  "img_path": "/data/qiuhui/data/adni/images/941_S_4365/2014-04-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 61,772 mm³, 31.4% above the reference mean. With a Z-score of 0.91 (81.9th percentile), this represents normal volume ; hippocampal volume measures 7,012 mm³, 0.6% above the reference mean. With a Z-score of 0.05 (52.2th percentile), this represents normal volume ; whole brain volume measures 1,088,440 mm³, 5.8% above the reference mean. With a Z-score of 0.75 (77.5th percentile), this represents normal volume . ",
  "text_data": "Age is 82.3 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 24.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.11 SUVR (normal ); Amyloid beta: 1163.00 pg/mL (normal ); Total tau: 207.20 pg/mL (normal ); Phosphorylated tau: 18.34 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular, hippocampal, and whole brain) are within normal ranges, and biomarkers (Aβ, T-tau, P-tau, AV45) are normal. The MMSE score of 30 is intact, but the MoCA score of 24 suggests mild cognitive impairment (MCI), though this could also reflect age-related changes or test variability.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to the discrepancy between MMSE and MoCA, but normal biomarkers and volumes support CN",
  "timestamp": "2025-07-26T17:38:24.672867"
}