{
  "ptid_time": "023_S_0926_2007-04-03",
  "img_path": "/data/qiuhui/data/adni/images/023_S_0926/2007-04-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,590 mm³, 1.9% above the reference mean. With a Z-score of 0.04 (51.7th percentile), this represents normal volume ; hippocampal volume measures 6,985 mm³, 1.8% below the reference mean. With a Z-score of -0.17 (43.4th percentile), this represents normal volume ; whole brain volume measures 1,012,870 mm³, 3.9% above the reference mean. With a Z-score of 0.49 (68.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,320 mm³, 9.6% below the reference mean. With a Z-score of -0.59 (27.8th percentile), this represents normal volume ; fusiform gyrus volume measures 17,917 mm³, 5.3% above the reference mean. With a Z-score of 0.48 (68.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,673 mm³, 13.0% below the reference mean. With a Z-score of -1.13 (12.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 71.9 years. Gender is Female. Education: 16 years. MMSE: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with mild atrophy only in the middle temporal gyrus. The MMSE score of 28 is within the normal range, and there is no APOE4 allele present, which reduces Alzheimer's risk. The entorhinal cortex volume is slightly below the mean but still within the normal range.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T02:49:54.627503"
}