{
  "ptid_time": "002_S_0559_2006-05-23",
  "img_path": "/data/qiuhui/data/adni/images/002_S_0559/2006-05-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,656 mm³, 12.6% below the reference mean. With a Z-score of -0.30 (38.1th percentile), this represents normal volume ; hippocampal volume measures 7,651 mm³, 1.2% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; whole brain volume measures 1,096,860 mm³, 1.6% above the reference mean. With a Z-score of 0.21 (58.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,974 mm³, 3.1% below the reference mean. With a Z-score of -0.21 (41.7th percentile), this represents normal volume ; fusiform gyrus volume measures 18,629 mm³, 1.1% below the reference mean. With a Z-score of -0.09 (46.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,649 mm³, 6.1% above the reference mean. With a Z-score of 0.55 (70.9th percentile), this represents normal volume . ",
  "text_data": "Age is 79.3 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Smoking; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Amyloid beta: 1245.00 pg/mL (normal ); Total tau: 188.60 pg/mL (normal ); Phosphorylated tau: 15.82 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 based on Z-scores and percentiles. Biomarkers (Aβ, T-tau, P-tau) are normal, and MMSE score of 30 indicates no cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:02:20.015116"
}