{
  "ptid_time": "141_S_6061_2019-09-11",
  "img_path": "/data/qiuhui/data/adni/images/141_S_6061/2019-09-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 42,511 mm³, 51.5% above the reference mean. With a Z-score of 1.18 (88.1th percentile), this represents mild enlargement; hippocampal volume measures 6,985 mm³, 1.8% below the reference mean. With a Z-score of -0.17 (43.3th percentile), this represents normal volume ; whole brain volume measures 938,468 mm³, 3.7% below the reference mean. With a Z-score of -0.47 (32.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,365 mm³, 8.4% below the reference mean. With a Z-score of -0.51 (30.3th percentile), this represents normal volume ; fusiform gyrus volume measures 18,172 mm³, 6.8% above the reference mean. With a Z-score of 0.62 (73.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,344 mm³, 6.1% above the reference mean. With a Z-score of 0.53 (70.3th percentile), this represents normal volume . ",
  "text_data": "Age is 76.0 years. Gender is Female. Education: 16 years. MMSE: 28.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.66 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume shows mild enlargement (51.5% above mean, Z-score 1.18), but hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus volumes are within normal ranges. The MMSE score of 28 is normal, and there is no APOE4 risk allele.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (ventricular enlargement could suggest early changes, but other markers and cognitive performance are normal)",
  "timestamp": "2025-07-26T17:07:12.750484"
}