{
  "ptid_time": "011_S_4893_2016-09-22",
  "img_path": "/data/qiuhui/data/adni/images/011_S_4893/2016-09-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,980 mm³, 14.6% below the reference mean. With a Z-score of -0.33 (36.9th percentile), this represents normal volume ; hippocampal volume measures 5,720 mm³, 19.6% below the reference mean. With a Z-score of -1.80 (3.6th percentile), this represents moderate atrophy; whole brain volume measures 910,913 mm³, 6.5% below the reference mean. With a Z-score of -0.82 (20.5th percentile), this represents normal volume ; entorhinal cortex volume measures 2,931 mm³, 20.2% below the reference mean. With a Z-score of -1.24 (10.8th percentile), this represents mild atrophy; fusiform gyrus volume measures 16,602 mm³, 2.4% below the reference mean. With a Z-score of -0.22 (41.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,450 mm³, 3.8% below the reference mean. With a Z-score of -0.33 (37.2th percentile), this represents normal volume . ",
  "text_data": "Age is 72.1 years. Gender is Female. Education: 12 years. MMSE: 24.0. MoCA: 23.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.40 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows moderate atrophy (Z-score -1.80, 3.6th percentile), and the entorhinal cortex shows mild atrophy (Z-score -1.24, 10.8th percentile), both of which are key regions affected in Alzheimer's disease. The MMSE (24) and MoCA (23) scores indicate mild cognitive impairment, and the presence of APOE4 and elevated AV45 (amyloid positivity) further support an Alzheimer's pathology.  \nDiagnosis: **MCI (likely due to Alzheimer's disease)**  \nConfidence: **High**",
  "timestamp": "2025-07-25T23:01:15.564054"
}