{
  "ptid_time": "005_S_0553_2010-10-13",
  "img_path": "/data/qiuhui/data/adni/images/005_S_0553/2010-10-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,604 mm³, 11.5% below the reference mean. With a Z-score of -0.33 (36.9th percentile), this represents normal volume ; hippocampal volume measures 7,466 mm³, 7.1% above the reference mean. With a Z-score of 0.62 (73.2th percentile), this represents normal volume ; whole brain volume measures 994,328 mm³, 3.4% below the reference mean. With a Z-score of -0.44 (32.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,864 mm³, 2.6% below the reference mean. With a Z-score of -0.17 (43.1th percentile), this represents normal volume ; fusiform gyrus volume measures 15,682 mm³, 13.2% below the reference mean. With a Z-score of -1.14 (12.7th percentile), this represents mild atrophy; middle temporal gyrus volume measures 20,704 mm³, 2.6% above the reference mean. With a Z-score of 0.24 (59.3th percentile), this represents normal volume . ",
  "text_data": "Age is 88.6 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Hematopoietic-Lymphatic; Renal-Genitourinary; Major Surgical Procedures. MMSE: 30.0. MoCA: 25.0. Logical Memory: 23.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.98 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges except for mild atrophy in the fusiform gyrus. Cognitive scores (MMSE 30, MoCA 25) are normal for age, and amyloid PET (AV45) is negative. No APOE4 risk allele is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T21:10:07.227444"
}