{
  "ptid_time": "002_S_4799_2019-06-18",
  "img_path": "/data/qiuhui/data/adni/images/002_S_4799/2019-06-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,183 mm³, 38.1% above the reference mean. With a Z-score of 0.91 (81.9th percentile), this represents normal volume ; hippocampal volume measures 7,786 mm³, 3.0% above the reference mean. With a Z-score of 0.29 (61.5th percentile), this represents normal volume ; whole brain volume measures 1,165,640 mm³, 8.0% above the reference mean. With a Z-score of 1.04 (85.0th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,589 mm³, 11.9% above the reference mean. With a Z-score of 0.81 (79.0th percentile), this represents normal volume ; fusiform gyrus volume measures 21,997 mm³, 16.8% above the reference mean. With a Z-score of 1.43 (92.3th percentile), this represents mild enlargement; middle temporal gyrus volume measures 25,565 mm³, 19.8% above the reference mean. With a Z-score of 1.78 (96.2th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 75.0 years. Gender is Male. Education: 14 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (hippocampal, ventricular, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal to mildly/moderately enlarged ranges, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 27) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:32:41.415367"
}