{
  "ptid_time": "020_S_6282_2018-04-09",
  "img_path": "/data/qiuhui/data/adni/images/020_S_6282/2018-04-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,699 mm³, 13.5% above the reference mean. With a Z-score of 0.32 (62.6th percentile), this represents normal volume ; hippocampal volume measures 8,306 mm³, 9.9% above the reference mean. With a Z-score of 0.96 (83.3th percentile), this represents normal volume ; whole brain volume measures 1,183,850 mm³, 9.7% above the reference mean. With a Z-score of 1.26 (89.5th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,504 mm³, 9.8% above the reference mean. With a Z-score of 0.67 (74.8th percentile), this represents normal volume ; fusiform gyrus volume measures 23,520 mm³, 24.9% above the reference mean. With a Z-score of 2.12 (98.3th percentile), this represents significant enlargement; middle temporal gyrus volume measures 22,113 mm³, 3.6% above the reference mean. With a Z-score of 0.33 (62.8th percentile), this represents normal volume . ",
  "text_data": "Age is 75.5 years. Gender is Male. Education: 14 years. Handedness: Right. Race: White. MMSE: 27.0. MoCA: 24.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within or above the normal range, with no significant atrophy. Cognitive scores (MMSE 27, MoCA 24) are borderline for MCI but still within normal limits for age. No APOE4 risk allele is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to borderline MoCA score, but structural imaging strongly supports normal cognition)",
  "timestamp": "2025-07-26T01:18:15.714394"
}