{
  "ptid_time": "127_S_6203_2020-08-28",
  "img_path": "/data/qiuhui/data/adni/images/127_S_6203/2020-08-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,888 mm³, 50.5% below the reference mean. With a Z-score of -1.16 (12.4th percentile), this represents mild atrophy; hippocampal volume measures 7,289 mm³, 2.5% above the reference mean. With a Z-score of 0.22 (58.9th percentile), this represents normal volume ; whole brain volume measures 973,914 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,545 mm³, 3.5% below the reference mean. With a Z-score of -0.21 (41.5th percentile), this represents normal volume ; fusiform gyrus volume measures 17,699 mm³, 4.0% above the reference mean. With a Z-score of 0.37 (64.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,343 mm³, 6.1% above the reference mean. With a Z-score of 0.53 (70.2th percentile), this represents normal volume . ",
  "text_data": "Age is 70.1 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.09 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular enlargement (mild atrophy) but otherwise normal volumes in key regions like the hippocampus, entorhinal cortex, and temporal structures. Cognitive scores (MMSE 30, MoCA 28) are within normal limits, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:30:36.249947"
}