{
  "ptid_time": "016_S_0354_2007-07-11",
  "img_path": "/data/qiuhui/data/adni/images/016_S_0354/2007-07-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,332 mm³, 18.7% below the reference mean. With a Z-score of -0.45 (32.7th percentile), this represents normal volume ; hippocampal volume measures 6,788 mm³, 10.2% below the reference mean. With a Z-score of -1.00 (16.0th percentile), this represents normal volume ; whole brain volume measures 953,824 mm³, 11.6% below the reference mean. With a Z-score of -1.51 (6.5th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,426 mm³, 16.5% below the reference mean. With a Z-score of -1.12 (13.2th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,475 mm³, 7.2% below the reference mean. With a Z-score of -0.62 (26.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,863 mm³, 6.9% below the reference mean. With a Z-score of -0.62 (26.7th percentile), this represents normal volume . ",
  "text_data": "Age is 76.8 years. Gender is Male. Education: 16 years. MMSE: 27.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows moderate whole-brain atrophy and mild entorhinal cortex atrophy, but hippocampal and other regional volumes are within normal limits. The MMSE score of 27 is within the normal range, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (While structural changes are present, cognitive performance remains intact, suggesting no significant impairment at this time.)",
  "timestamp": "2025-07-26T00:00:51.907655"
}