{
  "ptid_time": "073_S_4825_2013-09-13",
  "img_path": "/data/qiuhui/data/adni/images/073_S_4825/2013-09-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,815 mm³, 40.8% below the reference mean. With a Z-score of -0.98 (16.4th percentile), this represents normal volume ; hippocampal volume measures 9,426 mm³, 24.7% above the reference mean. With a Z-score of 2.41 (99.2th percentile), this represents significant enlargement; whole brain volume measures 1,180,640 mm³, 9.4% above the reference mean. With a Z-score of 1.22 (88.8th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,439 mm³, 8.3% above the reference mean. With a Z-score of 0.56 (71.2th percentile), this represents normal volume ; fusiform gyrus volume measures 21,311 mm³, 13.1% above the reference mean. With a Z-score of 1.12 (86.8th percentile), this represents mild enlargement; middle temporal gyrus volume measures 23,349 mm³, 9.4% above the reference mean. With a Z-score of 0.85 (80.1th percentile), this represents normal volume . ",
  "text_data": "Age is 72.9 years. Gender is Male. Education: 18 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows normal to mildly enlarged volumes in key regions, including the hippocampus, whole brain, and fusiform gyrus, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 25) are within normal ranges for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T09:53:33.174673"
}