The purpose of this study was to assess the value of computerized axial tomography (CAT) in canine larynges that exhibit controlled surgical defects, and in 18 patients with biopsy-proved epidermoid carcinoma of the larynx who were studied prospectively. Five canine larynges with sequential surgical defects of 0 mm, 5 mm, 10 mm, and 15 mm were studied by CAT in order to evaluate our ability to identify defects in the thyroid cartilage. A 5-mm collimator with overlapping sections at 3-mm intervals and a 13-mm collimator with 5-mm overlapping sections were both used for each stage of the experiment. Results show significantly improved resolution with the 5-mm collimator compared with the 13-mm unit. In the human study group, results demonstrated excellent (100%) soft-tissue tumor site correlation. It appears from this study that we still lack a highly reliable radiographic technique for evaluating preoperatively with accuracy the integrity of the thyroid cartilage in the patient with carcinoma of the larynx.

Download full-text PDF

Source
http://dx.doi.org/10.1177/019459988008800618DOI Listing

Publication Analysis

Top Keywords

thyroid cartilage
12
computerized axial
8
axial tomography
8
canine larynges
8
surgical defects
8
carcinoma larynx
8
5-mm collimator
8
overlapping sections
8
tomography assessment
4
assessment thyroid
4

Similar Publications

Transvestibular Chondrolarynoplasty-Experimental Study in Cadavers.

J Voice

January 2025

Universidade Federal de São Paulo - UNIFESP, 04023-062, São Paulo, São Paulo State, Brazil. Electronic address:

Background: The neck, and specifically the prominence of the thyroid cartilage, can be considered a marker of male gender, which is often unwanted by transgender women. Chondrolaryngoplasty is traditionally performed using an open transcervical approach, which, while effective, leaves visible scars that can compromise patient satisfaction. Recent advancements, such as the transoral endoscopic vestibular approach (TOEVA), have emerged as promising alternatives, eliminating external scars and improving esthetic outcomes.

View Article and Find Full Text PDF

Premature costochondral calcification is a rare finding occurring in young patients and is associated with metabolic and endocrinological conditions. Significant heterogeneity exists with regard to its definition and assessment. This scoping review aimed to summarize the prevalence, risk factors, etiology, evaluation, and management of patients with premature costochondral calcification.

View Article and Find Full Text PDF

Dual-energy CT in head and neck applications.

Neuroradiol J

January 2025

Division of Neurological Radiology, Department of Diagnostic and Therapeutic Radiology, Ramathibodi Hospital, Mahidol University, Thailand.

Dual-energy CT (DECT), also known as spectral CT, has advanced diagnostic capabilities in head and neck pathologies beyond those of conventional single-energy CT (SECT). By having images at two distinct energy levels, DECT generates virtual monoenergetic images (VMIs), iodine maps, and quantitative features such as iodine concentration (IC) and spectral Hounsfield unit attenuation curves (SHUAC), which leads to enhancing tissue characterization, reducing artifacts, and differentiating head and neck pathologies. This review highlights DECT's applications in evaluating head and neck squamous cell carcinoma (SCC), thyroid cartilage invasion, cervical lymph node metastasis, radiation therapy planning, post-treatment assessment, and role in other head and neck conditions, such as infection and sialolithiasis.

View Article and Find Full Text PDF

This study aimed to determine the incidence of traumatic dental injuries (TDIs) during oral tracheal intubation by traditional laryngoscopy in general anesthesia (GA) in pediatric patients aged 4-13 and the correlated risk factors in Damascus, Syria. The study included children at the Department of General Surgery, Damascus University. Each child was examined before, during, and after 12-24 h of entering the operation room.

View Article and Find Full Text PDF

Anatomical Study of the Larynx With Implications for Medialization Thyroplasty.

J Voice

January 2025

ENT Department, Valencia University General Hospital, Valencia, Spain; Medicine School of Valencia, University of Valencia, Valencia, Spain.

Objetives: Montgomery medialization thyroplasty involves fitting a silicone prosthesis in the thyroid cartilage according to gender-based placement criteria. This standardized procedure can lead in some cases to suboptimal results. The aim of this study is to identify individual anatomical differences between same-gender patients that could explain the occasional failures.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!