{
  "ptid_time": "029_S_0866_2008-10-14",
  "img_path": "/data/qiuhui/data/adni/images/029_S_0866/2008-10-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,610 mm³, 19.9% below the reference mean. With a Z-score of -0.54 (29.6th percentile), this represents normal volume ; hippocampal volume measures 6,737 mm³, 3.7% above the reference mean. With a Z-score of 0.30 (61.7th percentile), this represents normal volume ; whole brain volume measures 932,047 mm³, 0.4% above the reference mean. With a Z-score of 0.05 (52.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,847 mm³, 11.1% above the reference mean. With a Z-score of 0.60 (72.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,491 mm³, 14.8% above the reference mean. With a Z-score of 1.11 (86.7th percentile), this represents mild enlargement; middle temporal gyrus volume measures 16,990 mm³, 5.8% below the reference mean. With a Z-score of -0.51 (30.4th percentile), this represents normal volume . ",
  "text_data": "Age is 82.0 years. Gender is Female. Education: 13 years. MMSE: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 977.80 pg/mL (normal ); Total tau: 178.10 pg/mL (normal ); Phosphorylated tau: 15.28 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) are within normal ranges or show mild enlargement, with no significant atrophy. Biomarkers (Aβ, T-tau, P-tau) are normal, and cognitive performance (MMSE: 30) is intact.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T04:18:53.873652"
}