Purpose: Planes of reference for orbital fractures (PROF) was developed to standardize measurements made on orbital computed tomography scans. This study describes the use of PROF in determining the location along the orbital floor where the posterior ledge (PL) most commonly occurs. The transverse inclination and anterior-posterior inclination of the orbital floor will also be measured.
Methods: This study evaluates 104 patients with unilateral orbital fracture. Fifty-two patients had intact infra-orbital margin (IM) and 52 had fractured IM. Facial computed tomography scans were analyzed using Osirix Lite Digital Imaging and Communications in Medicine Viewer version 7.0.1 (Geneva, Switzerland). All skull positions were standardized by orientation according to Frankfurt and mid-sagittal planes. Measurements of distance of PL from IM were determined in the sagittal view. Measurements of the inclination of the orbital floor in the transverse and anterior-posterior sections were done on the coronal and sagittal views respectively.
Results: For patients with intact and fractured IM, the mean distances of PL from IM were 22.1 mm (95% CI: 21.2-23.0) and 21.1 mm (95% CI: 20.2-21.9) respectively. Mean transverse inclination was 19.4° (95% CI: 18.3-20.5). Mean anterior-posterior inclination was 15.5° (95% CI: 14.5-16.5).
Conclusion: Planes of reference for orbital fractures is a simple and effective method to acquire standardized measurements of the orbital cavity on computed tomography scans. Understanding the commonest location of PL and the orientation of the orbital floor in 3-dimensional space allows surgeons to perform dissection with greater precision.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/SCS.0000000000005021 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Stone density can predict the number of ESWL treatments needed in patients with pancreatic duct calculi.
Scand J Gastroenterol
March 2025
Department of Abdominal surgery, Helsinki University Hospital, Helsinki, Finland.
Objectives: Extracorporeal shock wave lithotripsy (ESWL) with endotherapy (ET) is the first-line treatment in patients with chronic pancreatitis (CP) and main pancreatic duct stone (PDS). Our study aimed to evaluate factors that predict the outcome of ESWL in CP patients with PDS.
Methods: We retrospectively analyzed data of 166 patients with CP and radiopaque PDS.
Temporal Trends in Noninvasive and Invasive Cardiac Testing From 2010 to 2022 in the US Medicare Population.
Circ Cardiovasc Imaging
March 2025
Seymour, Paul and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital (Y.A.C., M.S., M.C., L.L.J., A.J.E.).
Background: Cardiac diagnostic testing continues to evolve, and controversies remain regarding the optimal utilization of different procedures. We sought to evaluate changes in long-term utilization trends for a wide range of cardiac diagnostic tests in the context of advancing technologies and updated guidelines.
Methods: Annual cardiac testing volumes from 2010 to 2022 in the Medicare Part B population were compared across tests and by provider specialty and analyzed using Joinpoint regression.
Left-sided appendicitis revealing situs inversus: diagnostic challenges and emergency surgical management strategies - a case report.
J Surg Case Rep
March 2025
Department of Visceral Surgery and Digestive Oncology A, Mohammed VI University Hospital, BP 4806 Oujda Universite, 60049 Oujda, Morocco.
Situs inversus is a rare congenital anomaly that results in the transposition of the abdominal organs, leading to atypical clinical presentations, such as left-sided appendicitis. Acute appendicitis is the most common cause of right iliac fossa pain; however, its occurrence on the left side is exceedingly rare and often leads to diagnostic delays, which may result in serious complications such as peritonitis if not promptly addressed. Imaging modalities, particularly computed tomography (CT), play a critical role in the anatomical and pathological diagnosis, thereby guiding appropriate surgical management.
View Article and Find Full Text PDFGallbladder perforation due to the obstructing periampullary duodenal diverticulum (Lemmel's syndrome): a case report.
J Surg Case Rep
March 2025
Department of Gastrointestinal Surgery, Birat Medical College and Teaching Hospital (BMCTH), Tankisinwari, Morang, Biratnagar 56613, Nepal.
Lemmel's syndrome is a rare condition characterized by obstructive jaundice due to the periampullary duodenal diverticulum in the absence of choledocholithiasis or tumors. Its infrequent occurrence and non-specific clinical presentation can make it difficult to distinguish from other conditions. We present a case of Lemmel's syndrome in a 63-year-old male who exhibited symptoms of abdominal pain in right hypochondrium, vomiting, and fever.
View Article and Find Full Text PDFHead CT Scan Motion Artifact Correction via Diffusion-Based Generative Models.
Appl Med Artif Intell (2024)
February 2025
Center for Advanced Medical Computing and Analysis, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA.
Head motion is a major source of image artifacts in head computed tomography (CT), degrading the image quality and impacting diagnosis. Image-domain-based motion correction is practical for routine use since it doesn't rely on hard-to-obtain CT projection data. However, existing convolutional neural network (CNN)-based methods tend to over-smooth images, particularly in cases of moderate to severe 3D motion artifacts.
View Article and Find Full Text PDFWant 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!