{
  "ptid_time": "141_S_6015_2019-05-31",
  "img_path": "/data/qiuhui/data/adni/images/141_S_6015/2019-05-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 42,027 mm³, 9.1% above the reference mean. With a Z-score of 0.22 (58.6th percentile), this represents normal volume ; hippocampal volume measures 8,023 mm³, 6.1% above the reference mean. With a Z-score of 0.60 (72.5th percentile), this represents normal volume ; whole brain volume measures 1,267,090 mm³, 17.4% above the reference mean. With a Z-score of 2.26 (98.8th percentile), this represents significant enlargement; entorhinal cortex volume measures 5,126 mm³, 25.0% above the reference mean. With a Z-score of 1.70 (95.5th percentile), this represents moderate enlargement; fusiform gyrus volume measures 20,211 mm³, 7.3% above the reference mean. With a Z-score of 0.62 (73.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 28,403 mm³, 33.1% above the reference mean. With a Z-score of 2.98 (99.9th percentile), this represents significant enlargement. ",
  "text_data": "Age is 70.3 years. Gender is Male. Education: 14 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.04 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal or above-average volumes in all measured regions, including the hippocampus and entorhinal cortex, which are typically affected in Alzheimer's disease. Cognitive scores (MMSE 29, MoCA 25) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T17:06:48.308134"
}