{
  "ptid_time": "003_S_2374_2018-12-14",
  "img_path": "/data/qiuhui/data/adni/images/003_S_2374/2018-12-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 60,481 mm³, 63.6% above the reference mean. With a Z-score of 1.72 (95.7th percentile), this represents moderate enlargement; hippocampal volume measures 5,340 mm³, 17.8% below the reference mean. With a Z-score of -1.43 (7.7th percentile), this represents mild atrophy; whole brain volume measures 1,020,390 mm³, 9.9% above the reference mean. With a Z-score of 1.19 (88.3th percentile), this represents mild enlargement; entorhinal cortex volume measures 2,593 mm³, 25.1% below the reference mean. With a Z-score of -1.36 (8.8th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,659 mm³, 9.6% above the reference mean. With a Z-score of 0.72 (76.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,205 mm³, 4.6% below the reference mean. With a Z-score of -0.41 (34.2th percentile), this represents normal volume . ",
  "text_data": "Age is 88.8 years. Gender is Female. Education: 18 years. MMSE: 22.0. MoCA: 18.0. Logical Memory: 5.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows moderate ventricular enlargement and mild hippocampal and entorhinal cortex atrophy, which are suggestive of neurodegeneration. The cognitive scores (MMSE 22, MoCA 18) indicate significant impairment, consistent with dementia rather than MCI.  \n\n**Diagnosis:** Dementia  \n**Confidence:** High",
  "timestamp": "2025-07-25T20:48:58.220974"
}