A breathing movement sensor for chest radiography during inspiration in children aged less than 3 years: a prospective randomized controlled study.

Chest radiographs should be obtained at the peak of inspiration so that radiological findings can be precisely interpreted. However, this is not easily achieved, particularly in young children who do not follow the instruction to hold their breath. We developed a sensor that detects the breathing movements and conducted a randomized controlled study to determine whether the sensor would increase the proportion of chest radiographs obtained in the inspiration phase. We recruited 124 infants and children aged less than 3 years, who visited the pediatric department of a general hospital in Tokyo, Japan, and allocated them into one of two groups: with-sensor and without-sensor groups. Overall, 81% of all images were obtained during inspiration. The proportion of chest radiographs taken during inspiration was not statistically different between the two groups (81% vs. 82%). In the with-sensor group, radiologic technologists were able to obtain chest radiographs of the same quality while not observing the chest movement, but the sensor. The use of the sensor did not increase the proportion of chest radiographs taken in the inspiration phase in this study. However, this null result may indicate the possibility of utilizing the sensor for automatizing chest radiography in the future.

Multiple Esophageal Squamous Papillomas.

We report a rare case of multiple esophageal squamous papillomas (ESPs). A 42-year-old man underwent a medical examination, and abnormalities of multiple elevated lesions were noted using a esophagogastroduodenoscope. He underwent upper gastrointestinal tract radiography with an orally ingested barium sulfate and gastrointestinal endoscopy, which revealed multiple elevated lesions in the esophagus, predominantly on the distal esophagus. We performed an endoscopic esophageal mucosal resection using a cap-fitted esophagogastroduodenoscope to obtain sufficient specimens. Based on the pathological findings, we diagnosed multiple ESPs. Although single ESPs or a few ESPs in a patient are often encountered, multiple ESP cases are rare.