{
  "ptid_time": "011_S_4547_2014-03-05",
  "img_path": "/data/qiuhui/data/adni/images/011_S_4547/2014-03-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 54,222 mm³, 40.8% above the reference mean. With a Z-score of 0.98 (83.6th percentile), this represents normal volume ; hippocampal volume measures 7,087 mm³, 6.2% below the reference mean. With a Z-score of -0.61 (27.1th percentile), this represents normal volume ; whole brain volume measures 1,089,580 mm³, 0.9% above the reference mean. With a Z-score of 0.12 (54.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,572 mm³, 12.9% below the reference mean. With a Z-score of -0.87 (19.1th percentile), this represents normal volume ; fusiform gyrus volume measures 18,598 mm³, 1.3% below the reference mean. With a Z-score of -0.11 (45.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,741 mm³, 2.8% below the reference mean. With a Z-score of -0.25 (40.1th percentile), this represents normal volume . ",
  "text_data": "Age is 79.3 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 24.0. Logical Memory: 7.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.42 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are within normal ranges, though some structures (hippocampus, entorhinal cortex) show slight reductions. The MMSE score is normal (30/30), but the MoCA score (24/30) suggests mild cognitive impairment. The absence of APOE4 and elevated AV45 (amyloid burden) indicates possible Alzheimer's pathology despite normal structural volumes.  \n\nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (Cognitive testing suggests impairment, but structural atrophy is not yet pronounced.)",
  "timestamp": "2025-07-25T22:58:57.793043"
}