{
  "ptid_time": "037_S_6204_2018-03-09",
  "img_path": "/data/qiuhui/data/adni/images/037_S_6204/2018-03-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,870 mm³, 17.2% below the reference mean. With a Z-score of -0.41 (34.2th percentile), this represents normal volume ; hippocampal volume measures 8,312 mm³, 3.5% above the reference mean. With a Z-score of 0.35 (63.9th percentile), this represents normal volume ; whole brain volume measures 1,143,980 mm³, 0.8% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; entorhinal cortex volume measures 5,065 mm³, 18.8% above the reference mean. With a Z-score of 1.30 (90.4th percentile), this represents mild enlargement; fusiform gyrus volume measures 20,636 mm³, 3.7% above the reference mean. With a Z-score of 0.30 (61.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,659 mm³, 3.4% below the reference mean. With a Z-score of -0.28 (39.1th percentile), this represents normal volume . ",
  "text_data": "Age is 65.3 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 28.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.98 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges, with the entorhinal cortex showing mild enlargement but not atrophy. Cognitive scores (MMSE 29, MoCA 28) are well within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:54:08.913725"
}