{
  "ptid_time": "135_S_6360_2019-06-19",
  "img_path": "/data/qiuhui/data/adni/images/135_S_6360/2019-06-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,373 mm³, 25.5% below the reference mean. With a Z-score of -0.61 (27.2th percentile), this represents normal volume ; hippocampal volume measures 8,500 mm³, 5.9% above the reference mean. With a Z-score of 0.59 (72.2th percentile), this represents normal volume ; whole brain volume measures 1,131,370 mm³, 0.3% below the reference mean. With a Z-score of -0.04 (48.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,127 mm³, 3.2% below the reference mean. With a Z-score of -0.22 (41.3th percentile), this represents normal volume ; fusiform gyrus volume measures 20,368 mm³, 2.3% above the reference mean. With a Z-score of 0.19 (57.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,661 mm³, 5.6% above the reference mean. With a Z-score of 0.46 (67.7th percentile), this represents normal volume . ",
  "text_data": "Age is 69.2 years. Gender is Male. Education: 12 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Cognitive assessments (MMSE 30, MoCA 28) are also within normal limits, and APOE4 status (heterozygous) does not override the absence of structural or cognitive deficits.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:50:32.335007"
}