{
  "ptid_time": "011_S_0008_2006-03-20",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0008/2006-03-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,261 mm³, 50.6% below the reference mean. With a Z-score of -1.37 (8.6th percentile), this represents mild atrophy; hippocampal volume measures 6,040 mm³, 7.0% below the reference mean. With a Z-score of -0.56 (28.7th percentile), this represents normal volume ; whole brain volume measures 939,906 mm³, 1.3% above the reference mean. With a Z-score of 0.15 (56.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,449 mm³, 0.4% below the reference mean. With a Z-score of -0.02 (49.2th percentile), this represents normal volume ; fusiform gyrus volume measures 14,267 mm³, 11.4% below the reference mean. With a Z-score of -0.86 (19.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,155 mm³, 6.2% above the reference mean. With a Z-score of 0.56 (71.1th percentile), this represents normal volume . ",
  "text_data": "Age is 85.0 years. Gender is Female. Education: 18 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows mild ventricular atrophy (Z-score -1.37) but otherwise normal brain volumes, including the hippocampus (Z-score -0.56). The MMSE score of 29 is within the normal range, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (despite mild ventricular atrophy, preserved hippocampal volume and high MMSE suggest normal cognition, but age is a consideration)",
  "timestamp": "2025-07-25T22:37:53.584557"
}