{
  "ptid_time": "041_S_5100_2015-04-08",
  "img_path": "/data/qiuhui/data/adni/images/041_S_5100/2015-04-08/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 8,255 mm³, 9.2% above the reference mean. With a Z-score of 0.90 (81.5th percentile), this represents normal volume ; whole brain volume measures 1,196,880 mm³, 10.9% above the reference mean. With a Z-score of 1.41 (92.1th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,080 mm³, 0.5% below the reference mean. With a Z-score of -0.03 (48.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,529 mm³, 3.7% above the reference mean. With a Z-score of 0.31 (62.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,485 mm³, 4.0% below the reference mean. With a Z-score of -0.36 (36.0th percentile), this represents normal volume . ",
  "text_data": "Age is 73.2 years. Gender is Male. Education: 16 years. MMSE: 27.0. MoCA: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.02 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal, entorhinal cortex, fusiform gyrus, and middle temporal gyrus volumes are all within normal ranges, with no significant atrophy. Cognitive scores (MMSE 27, MoCA 30) are well within normal limits, and amyloid PET (AV45) is negative. No genetic risk (APOE4 negative).  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T07:26:17.942372"
}