{
  "ptid_time": "033_S_6298_2020-07-08",
  "img_path": "/data/qiuhui/data/adni/images/033_S_6298/2020-07-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,317 mm³, 45.4% below the reference mean. With a Z-score of -1.04 (14.9th percentile), this represents mild atrophy; hippocampal volume measures 6,905 mm³, 2.9% below the reference mean. With a Z-score of -0.27 (39.4th percentile), this represents normal volume ; whole brain volume measures 973,399 mm³, 0.1% below the reference mean. With a Z-score of -0.02 (49.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,062 mm³, 10.6% above the reference mean. With a Z-score of 0.65 (74.2th percentile), this represents normal volume ; fusiform gyrus volume measures 16,001 mm³, 5.9% below the reference mean. With a Z-score of -0.54 (29.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,463 mm³, 8.9% below the reference mean. With a Z-score of -0.77 (22.0th percentile), this represents normal volume . ",
  "text_data": "Age is 71.5 years. Gender is Female. Education: 16 years. MMSE: 28.0. MoCA: 26.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild ventricular enlargement (mild atrophy) but otherwise normal hippocampal, whole brain, and regional cortical volumes. Cognitive scores (MMSE 28, MoCA 26) are within normal limits, and there is no APOE4 genetic risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T05:40:12.420689"
}