{
  "ptid_time": "062_S_0793_2008-12-08",
  "img_path": "/data/qiuhui/data/adni/images/062_S_0793/2008-12-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,609 mm³, 15.3% below the reference mean. With a Z-score of -0.37 (35.7th percentile), this represents normal volume ; hippocampal volume measures 6,029 mm³, 20.2% below the reference mean. With a Z-score of -1.97 (2.4th percentile), this represents moderate atrophy; whole brain volume measures 962,545 mm³, 10.8% below the reference mean. With a Z-score of -1.41 (8.0th percentile), this represents mild atrophy; entorhinal cortex volume measures 1,881 mm³, 54.1% below the reference mean. With a Z-score of -3.67 (0.0th percentile), this represents profound atrophy; fusiform gyrus volume measures 13,426 mm³, 28.7% below the reference mean. With a Z-score of -2.45 (0.7th percentile), this represents significant atrophy; middle temporal gyrus volume measures 14,709 mm³, 31.1% below the reference mean. With a Z-score of -2.79 (0.3th percentile), this represents significant atrophy. ",
  "text_data": "Age is 70.9 years. Gender is Male. Education: 20 years. MMSE: 7.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The patient exhibits profound atrophy in the entorhinal cortex and significant atrophy in the fusiform gyrus and middle temporal gyrus, along with moderate hippocampal atrophy—all key regions affected in Alzheimer's disease. The MMSE score of 7.0 indicates severe cognitive impairment, consistent with advanced dementia.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:18:53.689525"
}