{
  "ptid_time": "003_S_4119_2012-08-28",
  "img_path": "/data/qiuhui/data/adni/images/003_S_4119/2012-08-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,566 mm³, 15.8% below the reference mean. With a Z-score of -0.46 (32.3th percentile), this represents normal volume ; hippocampal volume measures 7,455 mm³, 7.0% above the reference mean. With a Z-score of 0.60 (72.7th percentile), this represents normal volume ; whole brain volume measures 1,119,730 mm³, 8.8% above the reference mean. With a Z-score of 1.15 (87.6th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,153 mm³, 4.6% above the reference mean. With a Z-score of 0.30 (61.9th percentile), this represents normal volume ; fusiform gyrus volume measures 21,933 mm³, 21.4% above the reference mean. With a Z-score of 1.85 (96.8th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 22,199 mm³, 10.1% above the reference mean. With a Z-score of 0.90 (81.6th percentile), this represents normal volume . ",
  "text_data": "Age is 80.3 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or show mild/moderate enlargement, with no atrophy. Cognitive scores (MMSE 30, MoCA 28) are intact, and APOE4 status is negative, suggesting no significant neurodegenerative pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:49:33.948086"
}