{
  "ptid_time": "007_S_6455_2020-09-29",
  "img_path": "/data/qiuhui/data/adni/images/007_S_6455/2020-09-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,527 mm³, 26.6% above the reference mean. With a Z-score of 0.61 (72.9th percentile), this represents normal volume ; hippocampal volume measures 8,196 mm³, 15.2% above the reference mean. With a Z-score of 1.39 (91.8th percentile), this represents mild enlargement; whole brain volume measures 1,149,040 mm³, 17.9% above the reference mean. With a Z-score of 2.25 (98.8th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,399 mm³, 19.8% above the reference mean. With a Z-score of 1.21 (88.8th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,698 mm³, 15.8% above the reference mean. With a Z-score of 1.44 (92.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 23,305 mm³, 21.6% above the reference mean. With a Z-score of 1.87 (96.9th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 70.0 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 0.98 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus, and whole brain) are significantly above the reference mean, with Z-scores indicating enlargement rather than atrophy. Cognitive scores (MMSE 30, MoCA 29) are in the normal range, and there is no evidence of memory or functional impairment.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:10:02.919268"
}