{
  "ptid_time": "068_S_0478_2006-07-12",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0478/2006-07-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,614 mm³, 10.4% above the reference mean. With a Z-score of 0.14 (55.5th percentile), this represents normal volume ; hippocampal volume measures 9,433 mm³.; whole brain volume measures 1,364,230 mm³, 14.4% above the reference mean. With a Z-score of 2.67 (99.6th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,618 mm³, 15.4% above the reference mean. With a Z-score of 1.35 (91.1th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,788 mm³, 5.1% below the reference mean. With a Z-score of -0.77 (22.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,776 mm³.. ",
  "text_data": "Age is 56.1 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Cardiovascular; Respiratory; Dermatologic-Connective Tissue; Musculoskeletal; Gastrointestinal; Allergies or Drug Sensitivities. MMSE: 29.0. Logical Memory: 4.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1495.00 pg/mL (mild elevated); Total tau: 166.70 pg/mL (normal ); Phosphorylated tau: 14.25 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volumes show normal to mildly enlarged structures, 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 mildly elevated but normal tau) do not strongly support Alzheimer’s pathology.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T08:50:15.033071"
}