{
  "ptid_time": "068_S_0478_2007-02-12",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0478/2007-02-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,075 mm³, 16.3% above the reference mean. With a Z-score of 0.22 (58.5th percentile), this represents normal volume ; hippocampal volume measures 9,481 mm³.; whole brain volume measures 1,363,800 mm³, 14.4% above the reference mean. With a Z-score of 2.67 (99.6th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,243 mm³, 6.0% above the reference mean. With a Z-score of 0.53 (70.0th percentile), this represents normal volume ; fusiform gyrus volume measures 20,977 mm³, 0.6% above the reference mean. With a Z-score of 0.10 (53.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 29,779 mm³.. ",
  "text_data": "Age is 56.6 years. Gender is Male. Education: 16 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volumes (hippocampal, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or above the reference mean, with no significant atrophy. The MMSE score of 29/30 is within the normal range, and the absence of APOE4 alleles reduces genetic risk for Alzheimer’s.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:50:22.294717"
}