{
  "ptid_time": "005_S_4168_2012-09-06",
  "img_path": "/data/qiuhui/data/adni/images/005_S_4168/2012-09-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,236 mm³, 22.9% below the reference mean. With a Z-score of -0.67 (25.3th percentile), this represents normal volume ; hippocampal volume measures 7,354 mm³, 5.5% above the reference mean. With a Z-score of 0.48 (68.4th percentile), this represents normal volume ; whole brain volume measures 1,058,790 mm³, 2.9% above the reference mean. With a Z-score of 0.38 (64.7th percentile), this represents normal volume ; entorhinal cortex volume measures 5,119 mm³, 29.0% above the reference mean. With a Z-score of 1.90 (97.1th percentile), this represents moderate enlargement; fusiform gyrus volume measures 17,595 mm³, 2.6% below the reference mean. With a Z-score of -0.23 (41.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,639 mm³, 2.6% below the reference mean. With a Z-score of -0.24 (40.6th percentile), this represents normal volume . ",
  "text_data": "Age is 83.2 years. Gender is Male. Education: 17 years. MMSE: 28.0. MoCA: 28.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with only the entorhinal cortex showing moderate enlargement (Z-score 1.90, 97.1th percentile). Cognitive scores (MMSE 28, MoCA 28) are well within the normal range for age, and there is no significant atrophy in Alzheimer's-sensitive regions like the hippocampus or middle temporal gyrus. APOE4 carrier status is present but not accompanied by pathological changes.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T21:19:55.350949"
}