{
  "ptid_time": "003_S_0908_2017-10-20",
  "img_path": "/data/qiuhui/data/adni/images/003_S_0908/2017-10-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 70,479 mm³, 151.1% above the reference mean. With a Z-score of 3.46 (100.0th percentile), this represents profound enlargement; hippocampal volume measures 7,372 mm³, 3.6% above the reference mean. With a Z-score of 0.33 (63.0th percentile), this represents normal volume ; whole brain volume measures 1,040,140 mm³, 6.7% above the reference mean. With a Z-score of 0.85 (80.1th percentile), this represents normal volume ; entorhinal cortex volume measures 5,029 mm³, 36.9% above the reference mean. With a Z-score of 2.27 (98.8th percentile), this represents significant enlargement; fusiform gyrus volume measures 17,529 mm³, 3.0% above the reference mean. With a Z-score of 0.28 (60.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,392 mm³, 11.6% above the reference mean. With a Z-score of 1.01 (84.3th percentile), this represents mild enlargement. ",
  "text_data": "Age is 73.9 years. Gender is Female. Education: 16 years. MMSE: 28.0. MoCA: 27.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (Z-score 3.46), which is a strong indicator of neurodegeneration, but hippocampal volume is normal (Z-score 0.33). Cognitive scores (MMSE 28, MoCA 27) are within normal limits, and there is no APOE4 risk allele. The entorhinal cortex is significantly enlarged (Z-score 2.27), which is atypical for Alzheimer's but may suggest compensatory hypertrophy or another pathology.  \n\nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **Medium** (due to conflicting imaging findings—ventricular enlargement suggests atrophy, but preserved hippocampal volume and high cognitive scores argue against dementia or MCI)",
  "timestamp": "2025-07-25T20:40:08.161268"
}