{
  "ptid_time": "002_S_0413_2006-05-19",
  "img_path": "/data/qiuhui/data/adni/images/002_S_0413/2006-05-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,098 mm³, 3.7% above the reference mean. With a Z-score of 0.08 (53.3th percentile), this represents normal volume ; hippocampal volume measures 6,905 mm³, 2.9% below the reference mean. With a Z-score of -0.27 (39.4th percentile), this represents normal volume ; whole brain volume measures 1,052,840 mm³, 8.0% above the reference mean. With a Z-score of 1.01 (84.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,133 mm³, 12.5% above the reference mean. With a Z-score of 0.77 (77.9th percentile), this represents normal volume ; fusiform gyrus volume measures 20,208 mm³, 18.8% above the reference mean. With a Z-score of 1.71 (95.6th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 20,341 mm³, 6.1% above the reference mean. With a Z-score of 0.53 (70.2th percentile), this represents normal volume . ",
  "text_data": "Age is 76.3 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1006.00 pg/mL (normal ); Total tau: 107.30 pg/mL (moderate reduced); Phosphorylated tau: 10.57 pg/mL (mild reduced). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges or show mild to moderate enlargement, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. The MMSE score of 29 is within the normal range, and biomarkers (Aβ normal, T-tau and P-tau reduced) do not suggest Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConf",
  "timestamp": "2025-07-25T20:00:44.400604"
}