{
  "ptid_time": "010_S_0829_2009-02-11",
  "img_path": "/data/qiuhui/data/adni/images/010_S_0829/2009-02-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,166 mm³, 35.0% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume ; hippocampal volume measures 4,129 mm³, 46.3% below the reference mean. With a Z-score of -5.19 (0.0th percentile), this represents profound atrophy; whole brain volume measures 814,098 mm³, 20.9% below the reference mean. With a Z-score of -2.60 (0.5th percentile), this represents significant atrophy; entorhinal cortex volume measures 1,907 mm³, 51.0% below the reference mean. With a Z-score of -3.95 (0.0th percentile), this represents profound atrophy; fusiform gyrus volume measures 11,195 mm³, 38.5% below the reference mean. With a Z-score of -4.34 (0.0th percentile), this represents profound atrophy; middle temporal gyrus volume measures 11,515 mm³, 43.9% below the reference mean. With a Z-score of -3.90 (0.0th percentile), this represents profound atrophy. ",
  "text_data": "Age is 66.9 years. Gender is Female. Education: 15 years. MMSE: 24.0. Logical Memory: 2.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows profound atrophy in key Alzheimer's-related regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus) and significant whole-brain atrophy, alongside an MMSE score of 24 (borderline impaired) and APOE4 homozygosity, strongly suggesting neurodegenerative disease.  \nDiagnosis: **Dementia (likely Alzheimer’s disease)**  \nConfidence: **High**",
  "timestamp": "2025-07-25T22:34:06.426710"
}