{
  "ptid_time": "100_S_0035_2006-05-15",
  "img_path": "/data/qiuhui/data/adni/images/100_S_0035/2006-05-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,706 mm³, 38.5% below the reference mean. With a Z-score of -0.92 (17.8th percentile), this represents normal volume ; hippocampal volume measures 6,789 mm³, 10.2% below the reference mean. With a Z-score of -0.99 (16.0th percentile), this represents normal volume ; whole brain volume measures 1,043,340 mm³, 3.3% below the reference mean. With a Z-score of -0.43 (33.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,513 mm³, 14.3% below the reference mean. With a Z-score of -0.97 (16.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,143 mm³, 1.6% above the reference mean. With a Z-score of 0.14 (55.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,057 mm³, 3.4% above the reference mean. With a Z-score of 0.30 (61.9th percentile), this represents normal volume . ",
  "text_data": "Age is 77.4 years. Gender is Male. Education: 18 years. MMSE: 29.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 709.60 pg/mL (normal ); Total tau: 171.80 pg/mL (normal ); Phosphorylated tau: 21.70 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive testing (MMSE: 29) is intact, and biomarkers (Aβ, T-tau, P-tau) are normal, with no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T11:15:01.985407"
}