{
  "ptid_time": "003_S_4119_2019-10-29",
  "img_path": "/data/qiuhui/data/adni/images/003_S_4119/2019-10-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,788 mm³, 8.0% above the reference mean. With a Z-score of 0.23 (59.2th percentile), this represents normal volume ; hippocampal volume measures 6,634 mm³, 4.8% below the reference mean. With a Z-score of -0.41 (33.9th percentile), this represents normal volume ; whole brain volume measures 1,079,840 mm³, 4.9% above the reference mean. With a Z-score of 0.65 (74.1th percentile), this represents normal volume ; entorhinal cortex volume measures 5,417 mm³, 36.5% above the reference mean. With a Z-score of 2.39 (99.2th percentile), this represents significant enlargement; fusiform gyrus volume measures 21,557 mm³, 19.3% above the reference mean. With a Z-score of 1.67 (95.3th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 19,585 mm³, 2.9% below the reference mean. With a Z-score of -0.26 (39.7th percentile), this represents normal volume . ",
  "text_data": "Age is 87.3 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.12 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal ventricular, hippocampal, whole brain, and middle temporal gyrus volumes, with significant enlargement in the entorhinal cortex and moderate enlargement in the fusiform gyrus. Cognitive scores (MMSE 30, MoCA 29) are intact, and amyloid PET (AV45) is normal, suggesting no significant neurodegenerative pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T20:49:54.341322"
}