{
  "ptid_time": "041_S_4200_2012-04-18",
  "img_path": "/data/qiuhui/data/adni/images/041_S_4200/2012-04-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,714 mm³, 29.8% below the reference mean. With a Z-score of -0.68 (24.8th percentile), this represents normal volume ; hippocampal volume measures 7,668 mm³, 7.8% above the reference mean. With a Z-score of 0.71 (76.2th percentile), this represents normal volume ; whole brain volume measures 1,065,530 mm³, 9.3% above the reference mean. With a Z-score of 1.17 (88.0th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,283 mm³, 16.6% above the reference mean. With a Z-score of 1.02 (84.6th percentile), this represents mild enlargement; fusiform gyrus volume measures 16,656 mm³, 2.1% below the reference mean. With a Z-score of -0.19 (42.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,664 mm³, 18.2% above the reference mean. With a Z-score of 1.58 (94.3th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 70.7 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. 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-to-moderate enlargement, with no atrophy. Cognitive scores (MMSE, MoCA) are perfect (30/30), and there is no APOE4 genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:14:42.346883"
}