{
  "ptid_time": "027_S_4729_2013-05-20",
  "img_path": "/data/qiuhui/data/adni/images/027_S_4729/2013-05-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 40,244 mm³, 43.4% above the reference mean. With a Z-score of 0.99 (84.0th percentile), this represents normal volume ; hippocampal volume measures 5,116 mm³, 28.1% below the reference mean. With a Z-score of -2.58 (0.5th percentile), this represents significant atrophy; whole brain volume measures 905,307 mm³, 7.1% below the reference mean. With a Z-score of -0.90 (18.5th percentile), this represents normal volume ; entorhinal cortex volume measures 2,543 mm³, 30.8% below the reference mean. With a Z-score of -1.89 (2.9th percentile), this represents moderate atrophy; fusiform gyrus volume measures 15,040 mm³, 11.6% below the reference mean. With a Z-score of -1.06 (14.6th percentile), this represents mild atrophy; middle temporal gyrus volume measures 13,591 mm³, 29.1% below the reference mean. With a Z-score of -2.53 (0.6th percentile), this represents significant atrophy. ",
  "text_data": "Age is 78.8 years. Gender is Female. Education: 19 years. MMSE: 26.0. MoCA: 19.0. Logical Memory: 3.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows significant hippocampal and middle temporal gyrus atrophy, which are hallmark features of Alzheimer's disease, along with moderate entorhinal cortex atrophy. The MMSE score of 26 is borderline, but the MoCA score of 19 indicates cognitive impairment. The absence of APOE4 does not rule out Alzheimer's, as atrophy patterns are strongly suggestive.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-26T03:56:59.960477"
}