{
  "ptid_time": "010_S_0422_2007-09-28",
  "img_path": "/data/qiuhui/data/adni/images/010_S_0422/2007-09-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,474 mm³, 31.8% below the reference mean. With a Z-score of -0.76 (22.5th percentile), this represents normal volume ; hippocampal volume measures 8,147 mm³, 1.5% above the reference mean. With a Z-score of 0.15 (55.9th percentile), this represents normal volume ; whole brain volume measures 1,191,000 mm³, 5.0% above the reference mean. With a Z-score of 0.70 (75.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,445 mm³, 4.3% above the reference mean. With a Z-score of 0.30 (61.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,392 mm³, 2.6% below the reference mean. With a Z-score of -0.22 (41.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,010 mm³, 1.8% below the reference mean. With a Z-score of -0.15 (44.1th percentile), this represents normal volume . ",
  "text_data": "Age is 62.6 years. Gender is Male. Education: 20 years. MMSE: 30.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.47 SUVR (normal ); Total tau: 248.20 pg/mL (normal ); Phosphorylated tau: 21.75 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Ventricular volume is also normal. MMSE score is 30 (intact cognition), and biomarkers (T-tau, P-tau) are normal. No APOE4 risk allele is present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T22:32:05.590192"
}