{
  "ptid_time": "009_S_4903_2013-10-23",
  "img_path": "/data/qiuhui/data/adni/images/009_S_4903/2013-10-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,357 mm³, 40.2% above the reference mean. With a Z-score of 0.92 (82.1th percentile), this represents normal volume ; hippocampal volume measures 3,552 mm³, 50.1% below the reference mean. With a Z-score of -4.59 (0.0th percentile), this represents profound atrophy; whole brain volume measures 805,272 mm³, 17.4% below the reference mean. With a Z-score of -2.19 (1.4th percentile), this represents significant atrophy; entorhinal cortex volume measures 1,041 mm³, 71.7% below the reference mean. With a Z-score of -4.40 (0.0th percentile), this represents profound atrophy; fusiform gyrus volume measures 13,946 mm³, 18.0% below the reference mean. With a Z-score of -1.64 (5.0th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 13,879 mm³, 27.6% below the reference mean. With a Z-score of -2.40 (0.8th percentile), this represents significant atrophy. ",
  "text_data": "Age is 78.2 years. Gender is Female. Education: 12 years. MMSE: 28.0. MoCA: 22.0. Logical Memory: 6.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows profound atrophy in the hippocampus and entorhinal cortex, which are key regions affected in Alzheimer's disease (AD). The MMSE is normal (28/30), but the MoCA (22/30) suggests mild cognitive impairment, aligning with the significant atrophy seen in multiple brain regions.  \n\nDiagnosis: **MCI (likely due to Alzheimer’s pathology)**  \nConfidence: **High**",
  "timestamp": "2025-07-25T22:24:37.939262"
}