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Detecting lymphadenopathy affected by peri-implantitis using diffusion-weighted magnetic resonance imaging
Hirotaka Muraoka1, Takashi Kaneda2, Naohisa Hirahara2
1Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan. muraoka.hirotaka@nihon-u.ac.jp.
Oral Radiology
|March 4, 2022
Summary
Peri-implantitis can cause cervical lymphadenopathy, an inflammatory condition. Diffusion-weighted imaging (DWI) using apparent diffusion coefficients (ADCs) can help detect this lymphadenopathy in patients with dental implants.
Area of Science:
- Radiology
- Oral and Maxillofacial Surgery
- Oncology
Background:
- Peri-implantitis is a common complication of dental implants.
- Cervical lymphadenopathy can be associated with various inflammatory and infectious conditions.
Purpose of the Study:
- To assess the utility of diffusion-weighted imaging (DWI) in detecting peri-implantitis-induced cervical lymphadenopathy.
- To evaluate the correlation between lymph node characteristics on DWI and the presence of peri-implantitis.
Main Methods:
- Retrospective analysis of patients with and without peri-implantitis undergoing MRI.
- Comparison of lymph node short-axis diameters and apparent diffusion coefficients (ADCs) between groups.
- Receiver operating characteristic (ROC) analysis to determine the diagnostic effectiveness of LN size and ADC.
Main Results:
- Significantly larger lymph node sizes and higher ADCs were observed in patients with peri-implantitis (P < 0.01).
- ROC analysis identified cut-off values for LN size (4.78-4.84 mm) and ADC (1.09-1.12) for detecting peri-implantitis-related lymphadenopathy.
- The study analyzed 66 lymph nodes from 12 patients.
Conclusions:
- Cervical lymphadenopathy may serve as an inflammatory indicator of peri-implantitis.
- DWI parameters, specifically lymph node size and ADC, show potential in identifying peri-implantitis-associated lymphadenopathy.
