Veterinary Radiology & Ultrasound最新文献_第2页

Computed tomographic findings in 25 cats with ear canal neoplasia. 25只猫耳道瘤变的ct表现。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 DOI: 10.1111/vru.13467

Megan Wisnoski, Christine Gremillion, Gwendolyn Levine, Cambridge Coy, Kaylynn Veitch, Kenneth Waller, John F Griffin

{"title":"Computed tomographic findings in 25 cats with ear canal neoplasia.","authors":"Megan Wisnoski, Christine Gremillion, Gwendolyn Levine, Cambridge Coy, Kaylynn Veitch, Kenneth Waller, John F Griffin","doi":"10.1111/vru.13467","DOIUrl":"10.1111/vru.13467","url":null,"abstract":"Computed tomography is commonly used to evaluate feline otic disease; however, published studies characterizing the CT appearance of ear canal neoplasia are limited. The purpose of this multicenter, retrospective, secondary analysis, cross-sectional study was to describe the CT features of histopathologically confirmed feline ear canal neoplasia. The CT studies of 25 cats with ear canal neoplasia were prospectively scored by consensus of two veterinary radiologists. Recorded parameters were the presence of focal or multifocal tissue enlargement (mass/masses), lesion shape, location of the center of mass, attenuation characteristics, features of contrast enhancement, involvement of otic structures, calvarial and brain changes, changes of nearby structures, and lymphadenopathy. There was a significant overlap of CT findings between cats with malignant ceruminous gland neoplasia, ceruminous gland adenoma, and squamous cell carcinoma (SCC). Ceruminous gland adenoma was typically homogeneous in attenuation with homogeneous contrast enhancement and no intralesional fluid accumulations (IFAs) or involvement of adjacent structures. In contrast, SCC consistently had heterogeneous attenuation, heterogeneous contrast enhancement, IFAs, and involvement/invasion of adjacent structures. Malignant ceruminous gland neoplasia had variable attenuation and pattern of contrast enhancement with occasional IFAs and occasional involvement/invasion of adjacent structures. Knowledge of these imaging features will inform the creation of prioritized differential diagnosis lists. However, a biopsy is required to confirm the diagnosis.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"66 1","pages":"e13467"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11649876/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142839604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of sedation and general anesthesia protocols for ¹⁸F-FDG-PET/CT studies in dogs and cats: Musculoskeletal uptake and radiation dose to workers. 狗和猫进行 18F-FDG-PET/CT 研究时镇静和全身麻醉方案的比较：工作人员的肌肉骨骼摄取量和辐射剂量。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 Epub Date: 2024-10-10 DOI: 10.1111/vru.13439

Alexandra F Belotta, Shannon Beazley, Matthew Hutcheson, Monique Mayer, Hugues Beaufrère, Sally Sukut

{"title":"Comparison of sedation and general anesthesia protocols for 18F-FDG-PET/CT studies in dogs and cats: Musculoskeletal uptake and radiation dose to workers.","authors":"Alexandra F Belotta, Shannon Beazley, Matthew Hutcheson, Monique Mayer, Hugues Beaufrère, Sally Sukut","doi":"10.1111/vru.13439","DOIUrl":"10.1111/vru.13439","url":null,"abstract":"In veterinary medicine, PET/CT scans are generally performed with the patient under general anesthesia. The aim of this prospective crossover study was to compare the musculoskeletal uptake of 18F-FDG and radiation doses to workers during PET/CT studies of healthy dogs and cats between sedation and general anesthesia. Volume and maximal standard uptake values (SUVmax) values of abnormal 18F-FDG uptake in the skeletal musculature, presence of misregistration artifact, and radiation doses to workers for each PET/CT study were recorded. Sedation was associated with increased volume of 18F-FDG uptake in the musculature of the thoracic limbs (p = .01), cervical (p = .02), and thoracic (p = .03) spine. Increased volume and SUVmax of the musculature assessed altogether were associated with the lighter degree of sedation (p = .04 for both). A significant decrease in the odds of misregistration artifact was observed for anesthetized animals in comparison with sedated (OR: 0.0, 95% CI: 0.0-0.0, p = .01). Radiation doses to workers were significantly higher for sedation compared with general anesthesia (p = .01) and for the anesthesia technician compared with the nuclear medicine technologist (p = .01). Use of sedation for PET/CT studies in dogs and cats is feasible. However, it is associated with increased physiologic musculoskeletal uptake of 18F-FDG in the thoracic limbs, cervical, and thoracic spine, with increased frequency of misregistration artifact, and with increased radiation doses to workers. These limitations can be overcome by recognition of the uptake pattern and monitoring/rotation of the involved staff at institutions where a high caseload is expected.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"e13439"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142401471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gross target volume contouring in canine extra-axial brain tumors: Effects of magnetic resonance image slice thickness and time between subsequent image sets. 犬轴外脑肿瘤的总靶体积轮廓：后续图像集之间的磁共振图像切片厚度和时间的影响。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 DOI: 10.1111/vru.13474

Valerie J Poirier, Tracy Gieger, Monica Jensen, Samuel Hocker, Christopher J Pinard, Fiona M K James, Stephanie Nykamp

{"title":"Gross target volume contouring in canine extra-axial brain tumors: Effects of magnetic resonance image slice thickness and time between subsequent image sets.","authors":"Valerie J Poirier, Tracy Gieger, Monica Jensen, Samuel Hocker, Christopher J Pinard, Fiona M K James, Stephanie Nykamp","doi":"10.1111/vru.13474","DOIUrl":"10.1111/vru.13474","url":null,"abstract":"Accurate determination of the gross target volume (GTV) is critical in radiation treatment planning, as errors could result in underdosing of the tumor or overdosing of nearby organs at risk. This multicenter retrospective observational serial measurement study evaluated the effects of variations in MRI slice thickness and a time delay between the diagnostic (MRI-1) and RT planning (MRI-2) MRIs GTV contouring in dogs with presumed meningiomas. The hypothesis was that the GTV would increase in size with time on T1-weighted sequences with contrast. Inclusion required paired MRI acquisition within 3 months. The GTV was contoured on each MRI. Forty-six dogs were included. Slice thickness was significantly different (P < .001) between MRIs: MRI-1 had a median of 3.9 mm (range: 0.8-6 mm; only two dogs <2 mm), and MRI-2 had a median of 0.9 mm (range: 0.6-4.5 mm; only two dogs >2 mm). The median time between MRIs was 22 days (range: 8-74 days). The MRI-1 GTV was significantly different from MRI-2 GTV (P < .0001); thirty (65%) were larger, five were equal in size, and 12 were smaller than the MRI-2 GTV. This difference in GTV is likely due to the slice thickness differences between MRI acquisitions rather than changes in tumor size due to the short time interval between MRI-1 and MRI-2. This finding highlights the differences between diagnostic and RT treatment-planning MRIs. For brain tumor target contouring, an MRI at the same time as the RT planning CT with <1 mm slice thickness, 3D acquisitions, and anisotropic voxel is recommended.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"66 1","pages":"e13474"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11649881/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142839634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diagnostic imaging findings in lame Warmblood horses with bone injuries of the medial proximal phalanx glenoid cavity. 跛行温血马内侧近节趾骨盂腔骨损伤的影像诊断结果。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 Epub Date: 2024-10-08 DOI: 10.1111/vru.13449

Maxime Vandersmissen, Laurence Evrard, Alexandre Charles, Fabrice Audigié, Valeria Busoni

{"title":"Diagnostic imaging findings in lame Warmblood horses with bone injuries of the medial proximal phalanx glenoid cavity.","authors":"Maxime Vandersmissen, Laurence Evrard, Alexandre Charles, Fabrice Audigié, Valeria Busoni","doi":"10.1111/vru.13449","DOIUrl":"10.1111/vru.13449","url":null,"abstract":"This retrospective study aims to describe baseline and follow-up imaging findings in subchondral and trabecular bone damage occurring outside of the sagittal groove in the proximal phalanx (P1) glenoid in a case series of lame Warmblood horses. Thirteen lame horses (16 forelimbs) with standing magnetic resonance imaging (sMRI) evidence of nonsagittal groove glenoid subchondral and trabecular bone injury of P1 as the main lesion were included. All injuries were located at the medial aspect of the P1 glenoid. At sMRI, changes included subchondral bone plate thickening and trabecular sclerosis, bone marrow edema-like signal, subchondral bone resorption (11/16), and new bone production (8/16). Subchondral bone resorption in the transverse plane was linear (8/11), round (2/11), or ill-defined (1/11). Sclerosis, bone resorption, and new bone production were seen radiographically in 10, 4, and 5 limbs, respectively. All limbs had concurrent metacarpal condyle sMRI imaging abnormalities, osteophytosis, and joint effusion. Follow-up sMRIs were obtained in 8 of 16 limbs, five of which showing progression of the resorptive lesion. One horse encountered a comminuted fracture of the affected P1 18 months after the follow-up sMRI examination. The imaging appearance of the medial glenoid bone injuries of P1 in this case series is consistent with chronic bone overload. The linear configuration of bone resorption seen in eight lesions suggests short, incomplete stress fractures, which is supported by the ultimate catastrophic fracture occurring in one case.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"e13449"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142393687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiation therapy communication: Retreatment of multiple histologically confirmed oligodendroglioma drop metastasis with stereotactic radiotherapy in a dog. 放射治疗交流：用立体定向放射疗法治疗一只狗的多发性组织学确诊少突胶质细胞瘤下垂转移。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 Epub Date: 2024-10-12 DOI: 10.1111/vru.13454

Nicholas J Rancilio, Keiko Murakami, Tyler Harm, Neil Christensen

引用次数: 0

Hepatic parenchymal hypoattenuation in dogs with diabetes mellitus on computed tomography consistent with hepatic steatosis. 糖尿病犬肝实质低密度的ct表现与肝脂肪变性一致。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 DOI: 10.1111/vru.13464

Christy Buckley, Caroline V Fulkerson, Maxime Derre, Andrew Woolcock, Masahiro Murakami

{"title":"Hepatic parenchymal hypoattenuation in dogs with diabetes mellitus on computed tomography consistent with hepatic steatosis.","authors":"Christy Buckley, Caroline V Fulkerson, Maxime Derre, Andrew Woolcock, Masahiro Murakami","doi":"10.1111/vru.13464","DOIUrl":"10.1111/vru.13464","url":null,"abstract":"Hypoattenuation of the liver, consistent with hepatic steatosis or lipidosis, has been reported in veterinary patients. In people, measuring CT hepatic attenuation is diagnostic for hepatic steatosis, and hypoattenuation of the liver is defined as absolute if less than 40 HU or relative if the liver is 10 HU less than the spleen. The purpose of this study is to describe hepatic parenchymal attenuation in dogs with diabetes mellitus with or without diabetic ketosis (DK) or diabetic ketoacidosis (DKA), using the above categorization for absolute and relative hypoattenuation, as with humans. We hypothesized dogs with DK or DKA were more likely to have hypoattenuating livers. Twenty-seven diabetic dogs were included; fifteen were categorized in Group 1 as without DK or DKA, six in Group 2 as DK, and six in Group 3 as DKA. In Group 3, four of six dogs had absolute and relative hypoattenuating livers. Three of these were visually hypoattenuating to the vasculature, with one having negative attenuation and a histopathologic diagnosis of severe hepatic lipidosis. In Group 2, four of six dogs had relative hypoattenuating livers. In Group 1, only one of 15 dogs had a relatively hypoattenuating liver. Groups 2 and 3 had significantly lower absolute liver attenuation than Group 1. Presumed hepatic steatosis was present on CT and was more common with DK or DKA. These findings may help provide hepatic sampling recommendations and alter patient prognosis. Further research is needed to establish absolute and relative liver attenuation in dogs with correlation to histopathology and patient outcome.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"66 1","pages":"e13464"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11649884/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142839652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computed tomographic features and temporal evolution of the magnetic resonance imaging features of a resolving intracranial intraventricular hematoma in a dog. 犬颅内脑室内血肿的ct特征和磁共振成像特征的时间演变。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 DOI: 10.1111/vru.13468

Giorgio Kallis, Shanshan Guo, François Saulnier-Troff, Jonathan Hughes

引用次数: 0

Lumbosacral transitional vertebrae in small-breed dogs: Prevalence, classification, and characteristics. 小品种犬的腰骶过渡椎：患病率、分类和特征。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 DOI: 10.1111/vru.13469

Uhjin Kim, Jinhwa Chang, Kwangyong Yoon, Byungjin Kim, Jiyoung Ban, Sang-Hwan Hyun, Dongwoo Chang, Namsoon Lee

{"title":"Lumbosacral transitional vertebrae in small-breed dogs: Prevalence, classification, and characteristics.","authors":"Uhjin Kim, Jinhwa Chang, Kwangyong Yoon, Byungjin Kim, Jiyoung Ban, Sang-Hwan Hyun, Dongwoo Chang, Namsoon Lee","doi":"10.1111/vru.13469","DOIUrl":"10.1111/vru.13469","url":null,"abstract":"The lumbosacral transitional vertebra (LTV) is an abnormally formed vertebra that can be associated with cauda equina syndrome, lumbosacral (LS) degeneration, and pelvic rotation. However, there is little information on LTV in small-breed dogs, and no studies have investigated the association between LTV and LS diseases or degenerative changes in the coxofemoral joints. The purpose of this multicenter, retrospective, and cross-sectional study was to determine the prevalence of LTV in small-breed dogs (<10 kg), classify the type of LTV, and identify its association with degenerative changes in the LS and coxofemoral joints using CT images. Lumbosacral transitional vertebrae were divided into four types based on their morphological characteristics. Lumbosacral transitional vertebrae were detected in 127 of 812 dogs (15.6 %). The prevalence of LTV was higher in French bulldogs (33.3%), Schnauzers (33.3%), and Dachshunds (25%) than in other breeds. Type 2 was the most common, with morphological variations in the transverse processes, and 36.2% of the LTV group showed multiple types of LTV. Dogs with LTV tended to have LS spondylosis deformans (OR, 2.8) and pelvic rotation (OR, 6.4) compared with dogs without LTV. Type 4 LTV was significantly associated with pelvic rotation (p < 0.0001). This is the first study to investigate the prevalence, characteristics, and characteristics of LTV in small-breed dogs using CT images. The results of this study may contribute to a better understanding of this congenital anomaly in small-breed dogs. CT can evaluate LTV, which could predispose a dog to LS spondylosis deformans or pelvic rotation.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"66 1","pages":"e13469"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142839694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasonographic and Computed Tomographic Diagnosis of Urachal Diverticulum Concurrent With Pyometra in a Dog. 犬尿管憩室合并脓脓症的超声及ct诊断。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 DOI: 10.1111/vru.70002

Nicole Norena, Ryan B Appleby, Alice Defarges, Lea Mehrkens, Jeff Biskup

引用次数: 0

Radiographic anatomy of the nasal conchal bullae and conchal sinuses in mature horses. 成年马的鼻中隔和鼻中隔窦的 X 射线解剖图。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 Epub Date: 2024-10-04 DOI: 10.1111/vru.13442

Diego Darley Velasquez Piñeros, Aymara Eduarda de Lima, Anderson Fernando de Souza, Rubens Peres Mendes, Maurício José Bittar, Silvio Henrique de Freitas, Thiago Bernardino, Rodrigo Romero Corrêa

{"title":"Radiographic anatomy of the nasal conchal bullae and conchal sinuses in mature horses.","authors":"Diego Darley Velasquez Piñeros, Aymara Eduarda de Lima, Anderson Fernando de Souza, Rubens Peres Mendes, Maurício José Bittar, Silvio Henrique de Freitas, Thiago Bernardino, Rodrigo Romero Corrêa","doi":"10.1111/vru.13442","DOIUrl":"10.1111/vru.13442","url":null,"abstract":"The dorsal and ventral nasal conchal bullae and conchal sinuses are part of the complex equine paranasal sinus system and are commonly affected by secondary sinusitis. However, the radiographic anatomy of the conchal sinuses is poorly reported in the literature. The present study aimed to describe the radiographic anatomical characteristics of the nasal conchal bullae and conchal sinuses in mature horses. Six equine cadaveric heads without sinus or dental disorders were studied. A maxillary sinusotomy was performed to identify the dorsal and ventral nasal conchal bullae and conchal sinuses, allowing the application of radiopaque contrast medium in these structures. Afterward, the same projections were repeated. Laterolateral views allowed an adequate visualization of nasal conchal bullae and conchal sinuses; however, they overlapped the same contralateral structure. In the latero30°dorsal- lateroventral oblique view, the same structures were easily recognizable, but in an oblique view, the structures were projected dorsally in relation to the contralateral one. The dorsoventral view allowed partial visualization of the dorsal conchal bullae and dorsal sinuses, but it was not possible to identify the ventral conchal sinus and ventral conchal bullae. The offset dorsoventral view helped in the identification of the dorsal conchal bullae and dorsal conchal sinus, also achieving visualization of the medial region of the ventral conchal sinus and ventral conchal bullae. The use of contrast medium, added to the anatomical dissection, allowed a better radiographic identification of the sinuses and conchal bullae. The combination of different radiographic views is recommended for the evaluation of these structures.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"e13442"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0