{
  "ptid_time": "009_S_5176_2013-05-15",
  "img_path": "/data/qiuhui/data/adni/images/009_S_5176/2013-05-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,019 mm³, 47.8% above the reference mean. With a Z-score of 1.20 (88.4th percentile), this represents mild enlargement; hippocampal volume measures 7,137 mm³, 7.1% below the reference mean. With a Z-score of -0.80 (21.2th percentile), this represents normal volume ; whole brain volume measures 1,060,050 mm³, 3.0% above the reference mean. With a Z-score of 0.37 (64.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,623 mm³, 6.9% below the reference mean. With a Z-score of -0.54 (29.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,927 mm³, 9.4% above the reference mean. With a Z-score of 1.06 (85.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 22,117 mm³, 7.8% above the reference mean. With a Z-score of 0.69 (75.5th percentile), this represents normal volume . ",
  "text_data": "Age is 65.7 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Dermatologic-Connective Tissue; Endocrine-Metabolic; Hematopoietic-Lymphatic; Smoking; Malignancy; Major Surgical Procedures. MMSE: 29.0. MoCA: 28.0. Logical Memory: 17.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.07 SUVR (normal ); Amyloid beta: 867.00 pg/mL (normal ); Total tau: 215.80 pg/mL (normal ); Phosphorylated tau: 18.08 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume shows mild enlargement (Z-score 1.20), but hippocampal, whole brain, entorhinal cortex, and middle temporal gyrus volumes are within normal ranges. Cognitive scores (MMSE 29, MoCA 28) are intact, and biomarkers (Aβ, T-tau, P-tau, AV45) are normal, suggesting no significant neurodegenerative pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:27:31.878341"
}