{
  "ptid_time": "036_S_2378_2013-07-17",
  "img_path": "/data/qiuhui/data/adni/images/036_S_2378/2013-07-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,262 mm³, 4.1% above the reference mean. With a Z-score of 0.10 (53.9th percentile), this represents normal volume ; hippocampal volume measures 8,828 mm³, 10.0% above the reference mean. With a Z-score of 1.00 (84.1th percentile), this represents normal volume ; whole brain volume measures 1,272,880 mm³, 12.2% above the reference mean. With a Z-score of 1.73 (95.8th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,143 mm³, 2.8% below the reference mean. With a Z-score of -0.19 (42.3th percentile), this represents normal volume ; fusiform gyrus volume measures 25,023 mm³, 25.7% above the reference mean. With a Z-score of 2.14 (98.4th percentile), this represents significant enlargement; middle temporal gyrus volume measures 25,382 mm³, 13.3% above the reference mean. With a Z-score of 1.09 (86.3th percentile), this represents mild enlargement. ",
  "text_data": "Age is 61.9 years. Gender is Male. Education: 19 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.05 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal or above-average volumes in most regions, including the hippocampus, with only mild reductions in the entorhinal cortex. Cognitive scores (MMSE 29, MoCA 25) are within normal limits, and amyloid PET (AV45) is normal. APOE4 heterozygous status is a risk factor but not diagnostic.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T06:10:55.071328"
}