{
  "ptid_time": "016_S_5007_2014-02-03",
  "img_path": "/data/qiuhui/data/adni/images/016_S_5007/2014-02-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 46,537 mm³, 20.8% above the reference mean. With a Z-score of 0.50 (69.1th percentile), this represents normal volume ; hippocampal volume measures 7,429 mm³, 1.7% below the reference mean. With a Z-score of -0.17 (43.3th percentile), this represents normal volume ; whole brain volume measures 1,058,620 mm³, 1.9% below the reference mean. With a Z-score of -0.25 (40.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,127 mm³, 0.6% above the reference mean. With a Z-score of 0.04 (51.7th percentile), this represents normal volume ; fusiform gyrus volume measures 16,214 mm³, 13.9% below the reference mean. With a Z-score of -1.19 (11.8th percentile), this represents mild atrophy; middle temporal gyrus volume measures 22,382 mm³, 4.9% above the reference mean. With a Z-score of 0.44 (67.0th percentile), this represents normal volume . ",
  "text_data": "Age is 72.5 years. Gender is Male. Education: 14 years. MMSE: 28.0. MoCA: 21.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mostly normal measurements, with only mild atrophy in the fusiform gyrus (Z-score -1.19, 11.8th percentile). The hippocampal volume is within normal limits (Z-score -0.17), which is reassuring for memory function. However, the MoCA score of 21 suggests mild cognitive impairment (MCI), while the MMSE of 28 is borderline normal. The absence of APOE4 reduces Alzheimer's risk but does not rule out other causes of cognitive decline.  \n\n**Diagnosis:** **MCI** (Mild Cognitive Impairment)  \n**Confidence:** **Medium** (due to conflicting MMSE/MoCA scores and only mild fusiform atrophy)",
  "timestamp": "2025-07-26T00:37:31.266051"
}