{
  "ptid_time": "007_S_6515_2018-07-16",
  "img_path": "/data/qiuhui/data/adni/images/007_S_6515/2018-07-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,381 mm³, 11.9% above the reference mean. With a Z-score of 0.32 (62.6th percentile), this represents normal volume ; hippocampal volume measures 6,937 mm³, 6.8% above the reference mean. With a Z-score of 0.55 (70.7th percentile), this represents normal volume ; whole brain volume measures 963,058 mm³, 3.8% above the reference mean. With a Z-score of 0.45 (67.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,590 mm³, 3.7% above the reference mean. With a Z-score of 0.20 (57.9th percentile), this represents normal volume ; fusiform gyrus volume measures 19,050 mm³, 18.3% above the reference mean. With a Z-score of 1.37 (91.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 17,055 mm³, 5.4% below the reference mean. With a Z-score of -0.48 (31.5th percentile), this represents normal volume . ",
  "text_data": "Age is 89.9 years. Gender is Female. Education: 15 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 26.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.15 SUVR (mild elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, and middle temporal gyrus) are within normal ranges or show mild enlargement (fusiform gyrus). Cognitive scores (MMSE 30, MoCA 26) are within normal limits for age, and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T22:10:08.170337"
}