{
  "ptid_time": "016_S_6816_2019-09-17",
  "img_path": "/data/qiuhui/data/adni/images/016_S_6816/2019-09-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,498 mm³, 23.4% below the reference mean. With a Z-score of -0.54 (29.6th percentile), this represents normal volume ; hippocampal volume measures 7,741 mm³, 8.8% above the reference mean. With a Z-score of 0.81 (79.0th percentile), this represents normal volume ; whole brain volume measures 914,350 mm³, 6.2% below the reference mean. With a Z-score of -0.78 (21.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,090 mm³, 11.4% above the reference mean. With a Z-score of 0.70 (75.7th percentile), this represents normal volume ; fusiform gyrus volume measures 18,399 mm³, 8.1% above the reference mean. With a Z-score of 0.74 (77.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,318 mm³, 4.4% below the reference mean. With a Z-score of -0.39 (35.0th percentile), this represents normal volume . ",
  "text_data": "Age is 75.0 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 27.0. Logical Memory: 20.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "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 screening scores (MMSE 29, MoCA 27) are within normal limits for age, and while APOE4 is a risk factor, there is no current evidence of cognitive impairment.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T00:41:03.757444"
}