{
  "ptid_time": "035_S_2061_2011-04-04",
  "img_path": "/data/qiuhui/data/adni/images/035_S_2061/2011-04-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,478 mm³, 12.8% below the reference mean. With a Z-score of -0.32 (37.4th percentile), this represents normal volume ; hippocampal volume measures 7,045 mm³, 8.3% below the reference mean. With a Z-score of -0.93 (17.5th percentile), this represents normal volume ; whole brain volume measures 1,051,760 mm³, 2.2% above the reference mean. With a Z-score of 0.27 (60.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,153 mm³, 6.7% above the reference mean. With a Z-score of 0.52 (69.8th percentile), this represents normal volume ; fusiform gyrus volume measures 20,159 mm³, 10.7% above the reference mean. With a Z-score of 1.21 (88.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 22,996 mm³, 12.1% above the reference mean. With a Z-score of 1.07 (85.8th percentile), this represents mild enlargement. ",
  "text_data": "Age is 66.5 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 26.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with only mild enlargement noted in the fusiform gyrus and middle temporal gyrus. Cognitive scores (MMSE 29, MoCA 26) are within normal limits for age, and there is no APOE4 genetic risk factor. No significant atrophy is present in key Alzheimer's-related regions (hippocampus, entorhinal cortex).  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T05:52:12.219935"
}