{
  "ptid_time": "130_S_5142_2014-05-09",
  "img_path": "/data/qiuhui/data/adni/images/130_S_5142/2014-05-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,208 mm³, 89.6% above the reference mean. With a Z-score of 2.05 (98.0th percentile), this represents significant enlargement; hippocampal volume measures 6,339 mm³, 10.9% below the reference mean. With a Z-score of -1.00 (15.9th percentile), this represents normal volume ; whole brain volume measures 978,838 mm³, 0.4% above the reference mean. With a Z-score of 0.05 (52.2th percentile), this represents normal volume ; entorhinal cortex volume measures 2,392 mm³, 34.9% below the reference mean. With a Z-score of -2.14 (1.6th percentile), this represents significant atrophy; fusiform gyrus volume measures 15,863 mm³, 6.8% below the reference mean. With a Z-score of -0.62 (26.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,308 mm³, 0.7% above the reference mean. With a Z-score of 0.06 (52.5th percentile), this represents normal volume . ",
  "text_data": "Age is 77.3 years. Gender is Female. Education: 12 years. MMSE: 29.0. MoCA: 24.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The data shows significant ventricular enlargement (Z-score 2.05) and severe entorhinal cortex atrophy (Z-score -2.14), both of which are strong indicators of neurodegeneration. However, hippocampal volume is within normal limits (Z-score -1.00), and cognitive scores (MMSE 29, MoCA 24) suggest only mild impairment, not meeting full dementia criteria.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to conflicting markers—severe entorhinal atrophy but preserved hippocampal volume and relatively high MMSE)",
  "timestamp": "2025-07-26T14:57:50.301285"
}