use-three-dimensional-imaging-reconstruction-software-as-training

Use of Three-Dimensional Imaging Reconstruction Software as a Training Tool for Cranial Vena Cava Venipuncture in the Ferret

At the University of Georgia College of Veterinary Medicine, three-dimensional (3D) virtual anatomy reconstructive software has been incorporated into the ...

University of Georgia

Computed tomography (CT) is commonly used in veterinary medicine and plays an important role in disease identification and cancer staging. Identification of abnormal abdominal lymph nodes is important for clinical, therapeutic, and prognostic decision making. No published study describes the CT appearance of abdominal lymph nodes in healthy cats.

Computed tomographic appearance of abdominal lymph nodes in healthy cats.

Two adult neutered male dogs were presented for evaluation of firm, painless masses arising within muscle: an 8-year-old German wirehaired pointer dog with an accessory tricipital growth, and a 3-year-old German shepherd dog with a gracilis muscle growth. Magnetic resonance imaging (MRI) characteristics suggested malignant behavior, with a central fluid-like portion with a hyperenhancing lining, a nidus of disorganized tissue, and an extensive reactive zone, whereas histopathology was consistent with low-grade fibrosarcoma. This report describes histologically low-grade, yet biologically high-grade intramuscular fibrosarcoma, in which MRI provided detailed information on tumor behavior and assisted with biopsy and surgical planning.

Intramuscular Grade 1 fibrosarcoma: Magnetic resonance imaging findings in 2 dogs.

An 8-year-old 6.8-kg neutered male Dachshund was presented for evaluation of vomiting, diarrhea, anorexia, and swelling over the right perineal region. The dog had a history of a bilateral perineal herniorrhaphy and castration 14 months prior to presentation.

Jejunal strangulation and incarceration associated with bilateral perineal hernias in a neutered male dog.

The objective of this paper is to describe a novel technique for handling an ultrasound transducer while performing sterile ultrasound guided procedures. This novel technique involves placement of the transducer inside the sterile glove on the hand of the operator. This technique allows the operator access to use of both hands without having to pass the transducer to an assistant.

Novel Technique for Transducer Handling in Sterile Ultrasound Guided Procedures.

What Is Your Diagnosis?

Computed tomography angiography (CTA) is used for the diagnosis of intrahepatic portosystemic shunts (IHPSS). When planning for transcatheter intervention, caudal vena cava (CVC) measurements are typically obtained from two-dimensional (2D) imaging to aid in stent selection. We hypothesized that clinically applicable three-dimensional (3D) IHPSS models can be generated, and CVC measurements will not differ between 2D images and 3D models. Computed tomography angiography datasets from client-owned dogs with IHPSS at the University of Georgia Veterinary Teaching Hospital from 2016 to 2022 were analyzed. Materialise Mimics 25.0 and 3-matic 17.0 were used for 3D modeling. Caudal vena cava diameters were measured in 2D dorsal and transverse planes 20 mm cranial and caudal from the shunt ostium and were compared with CVC diameters from 3D models. Length was measured in the 2D dorsal plane between midpoints of each diameter and compared to the 3D model length. Data are presented as mean (SD), and intraclass correlation coefficients were performed. Three-dimensional models were generated for 32 IHPSS (15 right-, 12 left-, and five central-divisional). Two-dimensional dorsal and transverse area-associated diameter measurements were 16.7 mm (5.6) and 15.5 mm (4.2) cranial; 14.9 mm (4.2) and 14.3 mm (3.7) caudal. Three-dimensional area-associated diameter measurements were 15.3 mm (4.4) cranial and 14.0 mm (3.6) caudal. The 2D length was 61.5 mm (7.1) compared with 3D 59.9 mm (7.2). Intraclass correlation coefficients comparing 2D and 3D diameters were all >0.80, indicating very good agreement, with good agreement (>0.60) for length. Clinically applicable 3D IHPSS models can be generated using engineering software. Measurements from 3D models are consistent with 2D planar imaging. Both 2D CTA and 3D virtual models can be utilized for preprocedural planning, depending on clinician preference.

Comparison of two-dimensional imaging to three-dimensional modeling of intrahepatic portosystemic shunts using computed tomography angiography.

To establish an echocardiographic technique in koi carp (Cyprinus carpio), compare cardiopulmonary parameters under manual restraint versus anesthesia, and provide a gross anatomical and histologic cardiac description.

Echocardiographic evaluation in koi carp (Cyprinus carpio) under manual restraint compared to anesthesia with isoeugenol.

To determine whether folded-flap palatoplasty (FFP) results in improved respiratory outcomes compared to standard staphylectomy (SS).

Folded-flap palatoplasty is not superior to cut-and-sew staphylectomy for the treatment of brachycephalic obstructive airway syndrome in English Bulldogs.

A 10-year-old neutered male Labrador mix dog presented with a few-day history of stranguria and dysuria. Results of physical examination, laboratory findings, and imaging were consistent with a uroperitoneum and prostatomegaly. Ultrasound showed an enlarged, heterogeneous, and lobular prostate with mineralization, and fluoroscopy showed extravasation of contrast from the prostatic urethra through the prostatic parenchyma into the abdomen. The dog was diagnosed with prostatic lymphoma via cytology and ultimately euthanized. This is the first report of prostatic lymphoma with a concurrent uroperitoneum due to urine leakage from the prostatic urethra through the prostatic parenchyma and capsule into the abdomen.

Article	Year
Computed tomographic appearance of abdominal lymph nodes in healthy cats. Journal of veterinary internal medicine\| PubMed ID: 29572939	2018
Intramuscular Grade 1 fibrosarcoma: Magnetic resonance imaging findings in 2 dogs. The Canadian veterinary journal = La revue veterinaire canadienne\| PubMed ID: 34341599	2021
Jejunal strangulation and incarceration associated with bilateral perineal hernias in a neutered male dog. Journal of the American Veterinary Medical Association\| PubMed ID: 34780351	2021
Novel Technique for Transducer Handling in Sterile Ultrasound Guided Procedures. Journal of equine veterinary science\| PubMed ID: 34906678	2022
What Is Your Diagnosis? Journal of the American Veterinary Medical Association\| PubMed ID: 35439162	2022
Comparison of two-dimensional imaging to three-dimensional modeling of intrahepatic portosystemic shunts using computed tomography angiography. Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association\| PubMed ID: 38279771	2024
Echocardiographic evaluation in koi carp (Cyprinus carpio) under manual restraint compared to anesthesia with isoeugenol. American journal of veterinary research\| PubMed ID: 39079558	2024
Folded-flap palatoplasty is not superior to cut-and-sew staphylectomy for the treatment of brachycephalic obstructive airway syndrome in English Bulldogs. Journal of the American Veterinary Medical Association\| PubMed ID: 39842094	2025
A Case of Prostatic Lymphoma in a Dog with Symptoms of a Uroperitoneum Evaluated with Ultrasonography and Fluoroscopy. Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association\| PubMed ID: 39856807	2025

Michael Perlini

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