{
  "ptid_time": "014_S_0519_2009-06-03",
  "img_path": "/data/qiuhui/data/adni/images/014_S_0519/2009-06-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,937 mm³, 32.2% above the reference mean. With a Z-score of 0.77 (78.0th percentile), this represents normal volume ; hippocampal volume measures 7,897 mm³, 4.5% above the reference mean. With a Z-score of 0.44 (66.9th percentile), this represents normal volume ; whole brain volume measures 1,031,750 mm³, 4.4% below the reference mean. With a Z-score of -0.57 (28.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,412 mm³, 7.6% above the reference mean. With a Z-score of 0.52 (69.7th percentile), this represents normal volume ; fusiform gyrus volume measures 18,649 mm³, 1.0% below the reference mean. With a Z-score of -0.09 (46.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,397 mm³, 5.0% above the reference mean. With a Z-score of 0.45 (67.2th percentile), this represents normal volume . ",
  "text_data": "Age is 77.1 years. Gender is Male. Education: 16 years. MMSE: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1157.00 pg/mL (normal ); Total tau: 188.70 pg/mL (normal ); Phosphorylated tau: 15.41 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Additionally, biomarkers (Aβ, T-tau, P-tau) are normal, and cognitive performance (MMSE: 30) is intact. No significant atrophy or pathological markers are present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:40:43.087317"
}