{
  "ptid_time": "127_S_2234_2011-12-19",
  "img_path": "/data/qiuhui/data/adni/images/127_S_2234/2011-12-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,786 mm³, 6.5% above the reference mean. With a Z-score of 0.16 (56.4th percentile), this represents normal volume ; hippocampal volume measures 7,413 mm³, 3.5% below the reference mean. With a Z-score of -0.40 (34.6th percentile), this represents normal volume ; whole brain volume measures 971,279 mm³, 5.6% below the reference mean. With a Z-score of -0.70 (24.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,335 mm³, 14.3% below the reference mean. With a Z-score of -1.11 (13.3th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,136 mm³, 5.9% below the reference mean. With a Z-score of -0.66 (25.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,213 mm³, 13.1% above the reference mean. With a Z-score of 1.17 (87.8th percentile), this represents mild enlargement. ",
  "text_data": "Age is 64.6 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume analysis shows mostly normal volumes, with mild atrophy in the entorhinal cortex (Z-score -1.11, 13.3th percentile) and mild enlargement in the middle temporal gyrus (Z-score 1.17, 87.8th percentile). Cognitive scores (MMSE 30, MoCA 26) are within normal limits, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild entorhinal atrophy but no clinical impairment)",
  "timestamp": "2025-07-26T13:12:12.148829"
}