{
  "ptid_time": "135_S_6360_2018-05-21",
  "img_path": "/data/qiuhui/data/adni/images/135_S_6360/2018-05-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,196 mm³, 29.4% below the reference mean. With a Z-score of -0.70 (24.2th percentile), this represents normal volume ; hippocampal volume measures 8,660 mm³, 7.9% above the reference mean. With a Z-score of 0.79 (78.5th percentile), this represents normal volume ; whole brain volume measures 1,142,880 mm³, 0.7% above the reference mean. With a Z-score of 0.10 (54.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,136 mm³, 3.0% below the reference mean. With a Z-score of -0.21 (41.8th percentile), this represents normal volume ; fusiform gyrus volume measures 20,162 mm³, 1.3% above the reference mean. With a Z-score of 0.11 (54.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,734 mm³, 5.9% above the reference mean. With a Z-score of 0.49 (68.7th percentile), this represents normal volume . ",
  "text_data": "Age is 68.2 years. Gender is Male. Education: 12 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 28.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.59 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (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 29, MoCA 28) are also within normal limits, and APOE4 status (heterozygous) does not strongly indicate impairment in the absence of other deficits.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:50:23.139964"
}