{
  "ptid_time": "127_S_2234_2019-01-15",
  "img_path": "/data/qiuhui/data/adni/images/127_S_2234/2019-01-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,399 mm³, 33.2% above the reference mean. With a Z-score of 0.76 (77.7th percentile), this represents normal volume ; hippocampal volume measures 6,565 mm³, 7.7% below the reference mean. With a Z-score of -0.71 (23.9th percentile), this represents normal volume ; whole brain volume measures 909,152 mm³, 6.7% below the reference mean. With a Z-score of -0.85 (19.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,915 mm³, 6.6% above the reference mean. With a Z-score of 0.40 (65.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,662 mm³, 3.8% above the reference mean. With a Z-score of 0.35 (63.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,904 mm³, 14.3% above the reference mean. With a Z-score of 1.24 (89.2th percentile), this represents mild enlargement. ",
  "text_data": "Age is 71.6 years. Gender is Female. Education: 16 years. MMSE: 27.0. MoCA: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges or show mild enlargement (middle temporal gyrus), with no significant atrophy. Cognitive scores (MMSE 27, MoCA 30) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:12:56.291059"
}