{
  "ptid_time": "131_S_0384_2007-05-22",
  "img_path": "/data/qiuhui/data/adni/images/131_S_0384/2007-05-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,847 mm³, 30.1% below the reference mean. With a Z-score of -0.88 (19.1th percentile), this represents normal volume ; hippocampal volume measures 6,722 mm³, 3.5% below the reference mean. With a Z-score of -0.31 (38.0th percentile), this represents normal volume ; whole brain volume measures 1,001,910 mm³, 2.6% below the reference mean. With a Z-score of -0.35 (36.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,305 mm³, 8.5% above the reference mean. With a Z-score of 0.55 (71.0th percentile), this represents normal volume ; fusiform gyrus volume measures 15,225 mm³, 15.7% below the reference mean. With a Z-score of -1.36 (8.7th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,397 mm³, 8.8% below the reference mean. With a Z-score of -0.79 (21.5th percentile), this represents normal volume . ",
  "text_data": "Age is 80.8 years. Gender is Male. Education: 14 years. MMSE: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus. The MMSE score of 30 is within the normal range, and there is no APOE4 genetic risk factor present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (while most measures are normal, mild fusiform gyrus atrophy in an 80-year-old could warrant monitoring for future changes)",
  "timestamp": "2025-07-26T15:01:02.360641"
}