{
  "ptid_time": "011_S_0023_2005-10-31",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0023/2005-10-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,897 mm³, 43.2% below the reference mean. With a Z-score of -1.03 (15.1th percentile), this represents mild atrophy; hippocampal volume measures 8,310 mm³, 9.9% above the reference mean. With a Z-score of 0.97 (83.4th percentile), this represents normal volume ; whole brain volume measures 1,040,560 mm³, 3.6% below the reference mean. With a Z-score of -0.47 (32.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,623 mm³, 11.6% below the reference mean. With a Z-score of -0.79 (21.5th percentile), this represents normal volume ; fusiform gyrus volume measures 18,030 mm³, 4.3% below the reference mean. With a Z-score of -0.37 (35.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,500 mm³, 8.6% below the reference mean. With a Z-score of -0.77 (21.9th percentile), this represents normal volume . ",
  "text_data": "Age is 71.7 years. Gender is Male. Education: 14 years. Handedness: Right. Race: Black or African American. Medical history: Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Smoking; Major Surgical Procedures. MMSE: 26.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1647.00 pg/mL (moderate elevated); Total tau: 181.10 pg/mL (normal ); Phosphorylated tau: 16.74 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). The MMSE score of 26 is borderline, and while Aβ is moderately elevated, tau markers are normal, suggesting early but not definitive Alzheimer's pathology.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-25T22:41:26.852457"
}