{
  "ptid_time": "022_S_2263_2013-03-01",
  "img_path": "/data/qiuhui/data/adni/images/022_S_2263/2013-03-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,572 mm³, 8.5% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume ; hippocampal volume measures 7,412 mm³, 7.7% below the reference mean. With a Z-score of -0.77 (22.2th percentile), this represents normal volume ; whole brain volume measures 1,109,330 mm³, 2.2% below the reference mean. With a Z-score of -0.31 (37.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,842 mm³, 13.6% above the reference mean. With a Z-score of 0.94 (82.6th percentile), this represents normal volume ; fusiform gyrus volume measures 20,018 mm³, 0.5% above the reference mean. With a Z-score of 0.05 (51.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,520 mm³, 4.9% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume . ",
  "text_data": "Age is 64.0 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 28.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.07 SUVR (normal ); Amyloid beta: 1057.00 pg/mL (normal ); Total tau: 178.40 pg/mL (normal ); Phosphorylated tau: 14.73 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (including hippocampal, whole brain, and other regions) fall within normal ranges (Z-scores between -0.77 and +0.94). Biomarkers (Aβ, T-tau, P-tau, AV45) are normal, and cognitive scores (MMSE 28, MoCA 28) are intact. APOE4 carrier status is present but not currently associated with pathological changes.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T02:14:53.418766"
}