Publications by authors named "N Tsushima"
Purpose: To assess the utility of dual-type deep learning (DL)-based image reconstruction with DL-based image denoising and super-resolution processing by comparing images reconstructed with the conventional method in head and neck fat-suppressed (Fs) T2-weighted imaging (T2WI).
Materials And Methods: We retrospectively analyzed the cases of 43 patients who underwent head/neck Fs-T2WI for the assessment of their head and neck lesions. All patients underwent two sets of Fs-T2WI scans with conventional- and DL-based reconstruction.
Esophagojejunal anastomotic fistula is difficult to treat because of continuous salivary flow. This report describes the innovative use of a negative pressure wound therapy device with a slit drain to treat an esophagojejunal anastomotic fistula after free jejunal transfer. Insertion of a slit drain was very effective for management of saliva.
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- A new surgical technique was developed to preserve the nasolacrimal duct and inferior turbinate during the treatment of sinonasal inverted papilloma, which involves swinging these structures upward and backward.
- A study on 53 patients showed no recurrences in the maxillary sinus and successful preservation of the nasolacrimal duct in all but one case, indicating the technique's effectiveness.
- The method was found to have low complication rates, with no significant adverse effects reported, making it a safe option for treating inverted papilloma.
Background: Olfactory neuroblastoma (ONB) is a rare malignant tumor arising from the olfactory neuroepithelium. The standard of care for ONB is surgical resection; however, detailed treatment protocols vary by institution. Our treatment protocol consists of endoscopic skull base surgery (ESBS) for endoscopically resectable cases and induction chemotherapy followed by craniotomy combined with ESBS for locally advanced cases, with postoperative radiotherapy performed for all cases.
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- Photoimmunotherapy uses a targeted drug activated by infrared light to induce cell death in tumors, but accurately placing the necessary illumination devices for deep lesions is challenging during surgery.* -
- The development of "SlicerPIT," a planning software, allows for effective preoperative placement of illumination devices in 2D and 3D, improving guidance during actual procedures through integration with surgical navigation systems.* -
- In trials with three patients, SlicerPIT successfully guided the placement of treatment devices, yielding positive results with tumor necrosis and shrinkage, indicating its potential to enhance photoimmunotherapy outcomes.*