{
  "ptid_time": "036_S_4820_2013-02-05",
  "img_path": "/data/qiuhui/data/adni/images/036_S_4820/2013-02-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,360 mm³, 20.0% above the reference mean. With a Z-score of 0.54 (70.5th percentile), this represents normal volume ; hippocampal volume measures 5,182 mm³, 20.2% below the reference mean. With a Z-score of -1.62 (5.3th percentile), this represents moderate atrophy; whole brain volume measures 948,523 mm³, 2.2% above the reference mean. With a Z-score of 0.26 (60.4th percentile), this represents normal volume ; entorhinal cortex volume measures 2,472 mm³, 28.6% below the reference mean. With a Z-score of -1.54 (6.1th percentile), this represents moderate atrophy; fusiform gyrus volume measures 13,136 mm³, 18.5% below the reference mean. With a Z-score of -1.39 (8.3th percentile), this represents mild atrophy; middle temporal gyrus volume measures 17,306 mm³, 4.0% below the reference mean. With a Z-score of -0.36 (36.1th percentile), this represents normal volume . ",
  "text_data": "Age is 86.1 years. Gender is Female. Education: 14 years. MMSE: 22.0. MoCA: 12.0. Laboratory findings: Lymphocytes: 47.00 (significant elevated); Lymphocytes: 4.16 (profound elevated); LDH: 234.00 (significant elevated); Creatinine (Rate Blanked): 1.60 (profound elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The patient shows moderate atrophy in the hippocampus and entorhinal cortex, along with mild atrophy in the fusiform gyrus—key regions affected in Alzheimer's disease. Cognitive testing (MMSE 22, MoCA 12) indicates significant impairment, consistent with dementia rather than MCI. The absence of APOE4 does not rule out Alzheimer's, as atrophy patterns and cognitive deficits strongly suggest neurodegeneration.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:18:27.526327"
}