{
  "ptid_time": "002_S_0413_2010-05-06",
  "img_path": "/data/qiuhui/data/adni/images/002_S_0413/2010-05-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,828 mm³, 16.6% below the reference mean. With a Z-score of -0.45 (32.7th percentile), this represents normal volume ; hippocampal volume measures 6,833 mm³, 5.2% above the reference mean. With a Z-score of 0.42 (66.2th percentile), this represents normal volume ; whole brain volume measures 1,023,220 mm³, 10.2% above the reference mean. With a Z-score of 1.23 (89.0th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,276 mm³, 23.5% above the reference mean. With a Z-score of 1.27 (89.8th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,364 mm³, 20.2% above the reference mean. With a Z-score of 1.52 (93.6th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 19,528 mm³, 8.3% above the reference mean. With a Z-score of 0.74 (77.0th percentile), this represents normal volume . ",
  "text_data": "Age is 80.3 years. Gender is Female. Education: 16 years. MMSE: 30.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (hippocampal, ventricular, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or show mild/moderate enlargement, with no atrophy. The MMSE score of 30 is optimal, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:01:29.867728"
}