{
  "ptid_time": "128_S_4586_2012-06-05",
  "img_path": "/data/qiuhui/data/adni/images/128_S_4586/2012-06-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,246 mm³, 12.3% above the reference mean. With a Z-score of 0.29 (61.6th percentile), this represents normal volume ; hippocampal volume measures 8,112 mm³, 7.3% above the reference mean. With a Z-score of 0.71 (76.2th percentile), this represents normal volume ; whole brain volume measures 1,106,160 mm³, 2.5% above the reference mean. With a Z-score of 0.32 (62.6th percentile), this represents normal volume . ",
  "text_data": "Age is 75.8 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.07 SUVR (normal ); Total tau: 211.40 pg/mL (normal ); Phosphorylated tau: 19.26 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, and whole brain) are within normal ranges, with Z-scores indicating no significant atrophy. Cognitive testing (MMSE and MoCA) shows perfect scores, and biomarkers (T-tau, P-tau, AV45) are normal, with no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T14:02:08.950855"
}