{
  "ptid_time": "116_S_4855_2013-08-05",
  "img_path": "/data/qiuhui/data/adni/images/116_S_4855/2013-08-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 40,488 mm³, 13.9% below the reference mean. With a Z-score of -0.40 (34.3th percentile), this represents normal volume ; hippocampal volume measures 6,832 mm³, 2.0% below the reference mean. With a Z-score of -0.17 (43.3th percentile), this represents normal volume ; whole brain volume measures 1,032,750 mm³, 0.3% above the reference mean. With a Z-score of 0.05 (51.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,062 mm³, 2.3% above the reference mean. With a Z-score of 0.15 (56.1th percentile), this represents normal volume ; fusiform gyrus volume measures 17,634 mm³, 2.4% below the reference mean. With a Z-score of -0.21 (41.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,417 mm³, 8.7% below the reference mean. With a Z-score of -0.78 (21.8th percentile), this represents normal volume . ",
  "text_data": "Age is 84.8 years. Gender is Male. Education: 14 years. MMSE: 28.0. MoCA: 25.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. ",
  "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 based on Z-scores and percentiles. Cognitive scores (MMSE 28, MoCA 25) are within normal limits for age, and APOE4 status (heterozygous) does not alone indicate impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:16:39.119054"
}