{
  "ptid_time": "036_S_1023_2007-08-08",
  "img_path": "/data/qiuhui/data/adni/images/036_S_1023/2007-08-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,634 mm³, 5.1% below the reference mean. With a Z-score of -0.12 (45.3th percentile), this represents normal volume ; hippocampal volume measures 6,571 mm³, 7.6% below the reference mean. With a Z-score of -0.70 (24.2th percentile), this represents normal volume ; whole brain volume measures 909,408 mm³, 6.7% below the reference mean. With a Z-score of -0.84 (20.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,721 mm³, 1.3% above the reference mean. With a Z-score of 0.08 (53.2th percentile), this represents normal volume ; fusiform gyrus volume measures 14,987 mm³, 11.9% below the reference mean. With a Z-score of -1.08 (13.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 16,444 mm³, 14.2% below the reference mean. With a Z-score of -1.23 (10.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 77.6 years. Gender is Female. Education: 18 years. MMSE: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows mild atrophy in the fusiform gyrus and middle temporal gyrus, but other regions (hippocampus, whole brain, entorhinal cortex) are within normal ranges. The MMSE score of 29 is within the normal range (≥26), and there is no significant cognitive impairment reported.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy in some regions but no clinical symptoms)",
  "timestamp": "2025-07-26T06:08:39.572093"
}