X-ray detection of ingested non-metallic foreign bodies

Hybrid Vibration and UV Fluorescence Technology for Rapid Imaging and Guidance for Manual Removal of Fish Bones from Fish Floss

The objective of the proposed human-machine cooperation (HMC) workstation is to both rapidly detect calcium-based fish bones in masses of minced fish floss and visually guide operators in approaching and removing the detected fish bones by hand based on the detection of fingernails or plastic-based gloves. Because vibration is a separation mechanism that can prevent absorption or scattering in thick fish floss for UV fluorescence detection, the design of the HMC workstation included a vibration unit together with an optical box and display screens. The system was tested with commonly used fish (swordfish, salmon, tuna, and cod) representing various cooking conditions (raw meat, steam-cooked meat, and fish floss), their bones, and contaminating materials such as derived from gloves made of various types of plastic (polyvinylchloride, emulsion, and rubber) commonly used in the removal of fish bones. These aspects were each investigated using the spectrum analyzer and the optical box to obtain and analyze the fluorescence spectra and images. The filter was mounted on a charge-coupled device, and its transmission-wavelength window was based on the characteristic band for fish bones observed in the spectra. Gray-level AI algorithm was utilized to generate white marker rectangles. The vibration unit supports two mechanisms of air and downstream separation to improve the imaging screening of fish bones inside the considerable flow of fish floss. Notably, under 310 nm ultraviolet B (UVB) excitation, the fluorescence peaks of the raw fillets, steam-cooked meat, and fish floss were observed at for bands at longer wavelengths (500-600 nm), whereas those of the calcium and plastic materials occurred in shorter wavelength bands (400-500 nm). Perfect accuracy of 100% was achieved with the detection of 20 fish bones in 2 kg of fish floss, and the long test time of around 10-12 min results from the manual removal of these fish bones.

A case series of bread clip ingestions

The bread clip is one of the most insidious foreign body ingested. The bread clip poses a serious medical danger to patients yet may often fail to manifest itself clinically on initial ingestion. We present a case series of three patients with bread clips ingestions that were managed in the Gold Coast University Hospital, Queensland, Australia between 2020 and 2021. Bread clips are not always readily identifiable depending on imaging and the management of these patients will often require a multidisciplinary approach between the surgeons, gastroenterologists and radiologists.

Successful retrieval of a plastic bead from the airway of a child by flexible bronchoscopy and a balloon-tipped catheter: A case report and literature review

RATIONALE

Bronchial foreign body aspiration is a critical condition that jeopardizes the respiratory function of children. Prompt diagnosis and removal of the foreign body can reduce occurrence of foreign body complications and mortality. Aspiration of spherical plastic beads is rare, and the bead is difficult to retrieve.

PATIENT CONCERNS

An 8-year-old girl developed cough, transient throat wheezing, and intermittent cough after she accidentally inhaled a plastic bead 7 hours ago. Chest computed tomography scan revealed a round shadow 1.2 cm in diameter in the right main bronchus.

DIAGNOSES

Foreign body in the right main bronchus.

INTERVENTIONS

Retrieval by balloon-tipped catheter via flexible bronchoscopy was undertaken.

OUTCOMES

The bead was successfully retrieved and the child recovered uneventfully.

LESSONS

Foreign body aspiration in children constitutes a medical emergency in severe cases. Flexible bronchoscopy and balloon-tipped catheter retrieval can be used as an effective noninvasive treatment for aspiration of plastic beads.

Small bowel obstruction due to ingestion of rubber balls

We report a case of a 10-month-old girl who presented with a 10-day history of emesis that became bilious on the last day. The initial evaluation suggested small bowel obstruction. An upper gastrointestinal study confirmed the normal location of the duodenojejunal junction with normal rotation and no evidence of midgut volvulus. Ultrasound (US) evaluation demonstrated two intraluminal lesions that do not follow the typical features of solid or cystic lesions. Two rubber balls were found at surgery to be responsible for the small bowel obstruction. Foreign body ingestion is common in children, but this case demonstrates a unusual foreign object to be ingested as well as the US appearance of this particular foreign body.

Multifocal small bowel obstruction in an infant

This is a case report of an acute small bowel obstruction in a 17-month-old girl with no significant past medical history. Computerized tomography (CT) of the abdomen demonstrated complete obstruction at the proximal jejunum as well as perplexing dilation and air-fluid levels within the distal jejunum beyond the initial obstruction. Imaging demonstrated no evidence of malrotation, volvulus, or intussusception, but a clear diagnosis was not evident. Exploratory laparotomy was performed and multiple foreign bodies that appeared to be rubber balls were found within the small bowel. This case study identifies important clinical and radiologic considerations when assessing infants for small bowel obstruction.