{
  "ptid_time": "036_S_1023_2010-01-13",
  "img_path": "/data/qiuhui/data/adni/images/036_S_1023/2010-01-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,719 mm³, 14.2% below the reference mean. With a Z-score of -0.38 (35.1th percentile), this represents normal volume ; hippocampal volume measures 6,143 mm³, 5.4% below the reference mean. With a Z-score of -0.43 (33.2th percentile), this represents normal volume ; whole brain volume measures 886,532 mm³, 4.5% below the reference mean. With a Z-score of -0.54 (29.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,892 mm³, 12.4% above the reference mean. With a Z-score of 0.67 (74.8th percentile), this represents normal volume ; fusiform gyrus volume measures 15,114 mm³, 6.2% below the reference mean. With a Z-score of -0.46 (32.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 15,906 mm³, 11.8% below the reference mean. With a Z-score of -1.05 (14.7th percentile), this represents mild atrophy. ",
  "text_data": "Age is 80.1 years. Gender is Female. Education: 18 years. MMSE: 30.0. Logical Memory: 21.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges except for mild atrophy in the middle temporal gyrus. The MMSE score of 30 is intact, and there are no significant cognitive deficits reported.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mild atrophy in the middle temporal gyrus, but no clinical impairment)",
  "timestamp": "2025-07-26T06:09:01.928812"
}