{
  "ptid_time": "006_S_4150_2012-03-12",
  "img_path": "/data/qiuhui/data/adni/images/006_S_4150/2012-03-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,434 mm³, 44.4% below the reference mean. With a Z-score of -1.06 (14.4th percentile), this represents mild atrophy; hippocampal volume measures 8,327 mm³, 10.2% above the reference mean. With a Z-score of 0.99 (83.9th percentile), this represents normal volume ; whole brain volume measures 1,098,040 mm³, 1.7% above the reference mean. With a Z-score of 0.22 (58.9th percentile), this represents normal volume ; entorhinal cortex volume measures 5,207 mm³, 27.0% above the reference mean. With a Z-score of 1.83 (96.6th percentile), this represents moderate enlargement; fusiform gyrus volume measures 20,289 mm³, 7.7% above the reference mean. With a Z-score of 0.66 (74.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,516 mm³, 17.9% below the reference mean. With a Z-score of -1.61 (5.4th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 74.4 years. Gender is Male. Education: 14 years. MMSE: 28.0. MoCA: 23.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The imaging shows mild ventricular atrophy and moderate atrophy in the middle temporal gyrus, but hippocampal and whole brain volumes are normal. The MoCA score of 23 suggests mild cognitive impairment, while the MMSE of 28 is borderline normal. No APOE4 allele is present.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to mixed imaging findings and borderline cognitive scores)",
  "timestamp": "2025-07-25T21:34:16.901072"
}