{
  "ptid_time": "019_S_4367_2013-12-12",
  "img_path": "/data/qiuhui/data/adni/images/019_S_4367/2013-12-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,286 mm³, 36.0% below the reference mean. With a Z-score of -0.90 (18.4th percentile), this represents normal volume ; hippocampal volume measures 7,752 mm³, 0.9% above the reference mean. With a Z-score of 0.10 (53.9th percentile), this represents normal volume ; whole brain volume measures 1,103,510 mm³, 7.2% above the reference mean. With a Z-score of 0.90 (81.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,670 mm³, 5.7% below the reference mean. With a Z-score of -0.44 (32.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,898 mm³, 1.7% below the reference mean. With a Z-score of -0.19 (42.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,087 mm³, 11.9% below the reference mean. With a Z-score of -1.05 (14.6th percentile), this represents mild atrophy. ",
  "text_data": "Age is 67.1 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges except for mild atrophy in the middle temporal gyrus. Cognitive scores (MMSE 30, MoCA 26) are borderline normal (MoCA slightly below typical cutoff of 26), but no significant structural deficits or biomarker abnormalities (AV45 normal) suggest major neurodegeneration.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild MoCA reduction and middle temporal gyrus atrophy, but overall unremarkable biomarkers/volumes)",
  "timestamp": "2025-07-26T01:05:26.787890"
}