Veterinary Radiology & Ultrasound最新文献

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Magnetic Resonance Cholangiopancreatography for Cholangiopancreatic Duct Imaging in Dogs. 磁共振胆管造影在犬胆管胰胆管造影中的应用。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2025-01-01 DOI: 10.1111/vru.70008
Reina Fujiwara, Kie Yamamoto, Masahiro Yamasaki, Koichi Ohno
{"title":"Magnetic Resonance Cholangiopancreatography for Cholangiopancreatic Duct Imaging in Dogs.","authors":"Reina Fujiwara, Kie Yamamoto, Masahiro Yamasaki, Koichi Ohno","doi":"10.1111/vru.70008","DOIUrl":"10.1111/vru.70008","url":null,"abstract":"<p><p>Ultrasonography is often used to diagnose biliary diseases in dogs; however, it is difficult to delineate the entire bile and pancreatic ducts. Various imaging techniques for bile and pancreatic ducts have been attempted to overcome this problem. Magnetic resonance cholangiopancreatography (MRCP) is often used to evaluate the bile and pancreatic ducts in humans with obstructive jaundice, but very few reports exist on its usage in dogs. This study was designed as a prospective observational study to assess the feasibility and effectiveness of MRCP for visualizing the bile and pancreatic ducts in nondiseased dogs. Therefore, this study aimed to evaluate the visibility of the bile and pancreatic ducts through MRCP imaging using a 3.0 T-MRI system in dogs with no signs of hepatic, biliary, and pancreatic diseases. The detection rate for each anatomical structure was evaluated, with the highest observed in the gallbladder (100%), followed by the common bile duct (80%), cystic duct (70%), pancreatic ducts in the left and right lobe of the pancreas (70%), left and right hepatic ducts (60%), accessory pancreatic ducts (60%), and major pancreatic duct (40%). MRCP is a promising noninvasive imaging technique that can promptly and accurately visualize bile and pancreatic ducts in dogs without being influenced by the skill of the operator.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"66 1","pages":"e70008"},"PeriodicalIF":1.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143012767","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
Calendar of important events. 重要活动日历
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-19 DOI: 10.1111/vru.13461
{"title":"Calendar of important events.","authors":"","doi":"10.1111/vru.13461","DOIUrl":"10.1111/vru.13461","url":null,"abstract":"","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142669165","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
Characteristics and diagnostic performance of nonechoplanar diffusion-weighted imaging in detecting canine tympanokeratoma (cholesteatoma). 非平切面弥散加权成像在检测犬鼓室瘤(胆脂瘤)方面的特点和诊断性能。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-09-27 DOI: 10.1111/vru.13435
Charlotte Coeuriot, Hugues Gaillot, Albert Agoulon, Stephane Madec, Guillaume Michel, Pascal Prelaud, Amaury Briand, Emmanuel Bensignor, Vincent Bruet, Jérôme Abadie, Yannick Ruel, Marion Fusellier
{"title":"Characteristics and diagnostic performance of nonechoplanar diffusion-weighted imaging in detecting canine tympanokeratoma (cholesteatoma).","authors":"Charlotte Coeuriot, Hugues Gaillot, Albert Agoulon, Stephane Madec, Guillaume Michel, Pascal Prelaud, Amaury Briand, Emmanuel Bensignor, Vincent Bruet, Jérôme Abadie, Yannick Ruel, Marion Fusellier","doi":"10.1111/vru.13435","DOIUrl":"10.1111/vru.13435","url":null,"abstract":"<p><p>Tympanokeratomas (cholesteatomas) are destructive keratinic masses of the middle ear that are often treated surgically. In humans, nonechoplanar (non-EP) diffusion-weighted (DW) MRI is efficient in diagnosing tympanokeratomas and differentiating recurrent tympanokeratomas from granulation or fibrous tissue after surgery. The objectives of this study were to (1) determine the characteristics of non-EP DWI of histologically or cytologically confirmed canine tympanokeratomas, (2) determine the performance of non-EP DW images, apparent diffusion coefficient (ADC) map and ADC values in discriminating between tympanokeratomas and other causes of otitis media in dogs, and (3) find an optimal ADC cut-off value. Medical records of dogs diagnosed on MRI with otitis media in two veterinary hospitals were retrospectively reviewed. Sixty-two ears with a cytological or pathological diagnosis of either tympanokeratoma (36/62) or nontympanokeratoma otitis media (26/62) were selected. Diffusion-weighted images had an accuracy of 77.4%, a sensitivity of 94.4%, and a specificity of 53.8% for the detection of tympanokeratoma. The ADC value of middle ear content ranged from 517 to 1355.10<sup>-6</sup> mm<sup>2</sup>/s in tympanokeratoma and from 454 to 2447 × 10<sup>-6</sup> mm<sup>2</sup>/s in nontympanokeratoma otitis media. An ADC value below 916 × 10<sup>-6</sup> mm<sup>2</sup>/s interpreted as a tympanokeratoma yielded an accuracy of 78.7%, a sensitivity of 92.6%, and a specificity of 60%. In the study population, combined qualitative analysis of DW images and ADC maps was the most effective method for diagnosing tympanokeratomas with an accuracy of 80.9%, a sensitivity of 92.6%, and a specificity of 65%.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"836-843"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142354789","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
Quantitative MRI for brain lesion diagnosis in dogs and cats: A comprehensive overview. 用于犬猫脑损伤诊断的定量 MRI:全面概述。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-09-27 DOI: 10.1111/vru.13434
Cassandra Céré, Valentina Curcio, Hugo Dorez, Maud Debreuque, Florence Franconi, David Rousseau
{"title":"Quantitative MRI for brain lesion diagnosis in dogs and cats: A comprehensive overview.","authors":"Cassandra Céré, Valentina Curcio, Hugo Dorez, Maud Debreuque, Florence Franconi, David Rousseau","doi":"10.1111/vru.13434","DOIUrl":"10.1111/vru.13434","url":null,"abstract":"<p><p>MRI is widely used for the detection and characterization of brain lesions. There is a growing interest in the potential benefits of quantitative MRI (qMRI) in veterinary brain lesion diagnosis. Yet, the use of data processing tools in the veterinary field is not as democratized as for the diagnosis of human brain pathologies. Several reviews have addressed the characterization of brain lesions in cats and dogs. None of them is specifically focused on quantitative MRI data processing techniques for the diagnosis of brain lesions in the veterinary field. This paper aims to provide an overview of the evolution of qMRI on cats and dogs both in the clinical and preclinical fields. We analyze the achievements in the field as well as the remaining challenges in the diffusion of data processing tools for veterinary brain lesions characterization.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"849-864"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142354808","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
Feasibility assessment of inspiration breath-hold motion management for tumor tracking during cone-beam computed tomography for setup and radiotherapy in Veterinary Medicine: A pilot study. 用于兽医学中设置和放射治疗的锥形束计算机断层扫描过程中肿瘤跟踪的吸气憋气运动管理的可行性评估:试点研究。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-07-15 DOI: 10.1111/vru.13412
Keiko Murakami, Nicholas Rancilio, Lisa Foster
{"title":"Feasibility assessment of inspiration breath-hold motion management for tumor tracking during cone-beam computed tomography for setup and radiotherapy in Veterinary Medicine: A pilot study.","authors":"Keiko Murakami, Nicholas Rancilio, Lisa Foster","doi":"10.1111/vru.13412","DOIUrl":"10.1111/vru.13412","url":null,"abstract":"<p><p>Radiotherapy (RT) for lung or liver tumors can be challenging due to respiration-induced organ motion (RIOM). There are some methodological solutions to minimize RIOM. We explored a new approach to evaluate the feasibility and reproducibility of RIOM during RT with five total client-owned tumor-bearing animals using a remote-triggered breath-hold ventilator under general anesthesia during image acquisition and RT. There was one stereotactic body radiotherapy, one conventionally fractionated definitive intent, and three conventionally fractionated palliative intent RT cases. Based on repeated cone beam CT, there were no treatment table shifts required prior to initiating beam on. No clinically significant complications such as hypotension occurred during anesthesia. This technique appeared to be safe in this group of patients and was easily clinically implemented and highly reproducible. More complete follow-up data and larger studies are needed to evaluate clinical outcomes with this breath-hold ventilator technique in veterinary RT.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"672-678"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141617187","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
Computed tomographic characteristics of anatomical variations of external and internal jugular veins in dogs. 狗颈外静脉和颈内静脉解剖变异的计算机断层扫描特征。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-08-19 DOI: 10.1111/vru.13419
Seng Fong Lau, Brooke Dubansky, Chin-Chi Liu, Nathalie Rademacher
{"title":"Computed tomographic characteristics of anatomical variations of external and internal jugular veins in dogs.","authors":"Seng Fong Lau, Brooke Dubansky, Chin-Chi Liu, Nathalie Rademacher","doi":"10.1111/vru.13419","DOIUrl":"10.1111/vru.13419","url":null,"abstract":"<p><p>The external jugular vein (EJV) has been commonly used for clinical procedures in veterinary medicine, while the internal jugular vein (IJV) has been used mainly for research. Limited literature regarding anatomical variants in both EJV and IJV is available. The objectives of this descriptive retrospective study were to identify the number of dogs with variations of the jugular veins in canine patients undergoing CT of the head and neck and characterize these variations. Of 1000 dogs, 193 dogs (19.3%) had anatomical variations. Six types of anatomical variations were identified. The most common Type I was the absence of the linguofacial vein (72.0%, n = 139), with the lingual, facial, and maxillary veins entering the EJV at a common branching point. Type II described a variable course of the EJV and IJV, which in some dogs resulted in the absence of the EJV (14.0%, n = 27). Type III was a variable anastomotic loop formed by the linguofacial or maxillary vein cranial or at the junction of the EJV (4.2%, n = 8). In Type IV, the EJV was either suspected to be aplastic or markedly reduced in diameter compared with the contralateral side just distal to its formation (3.6%, n = 7). Type V was found in only six dogs (3.1%) with unilateral differences in the diameter of the IJV. Six of 193 dogs had a combination of more than one variation (Type VI, 3.1%). Type I was significantly observed more frequently in meso- and dolichocephalic breeds. Type II was significantly observed more frequently in brachycephalic breeds.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"727-734"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142005404","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
Clinical presentation, imaging characteristics, and short-term outcome of eight cats presented with suspected traumatic atlantoaxial hyperflexion. 八只疑似外伤性寰枢椎过度屈曲猫的临床表现、影像学特征和短期疗效。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-09-19 DOI: 10.1111/vru.13432
Cesar Llanos, Ella Fitzgerald, Bernat Marti-Garcia, Steven De Decker
{"title":"Clinical presentation, imaging characteristics, and short-term outcome of eight cats presented with suspected traumatic atlantoaxial hyperflexion.","authors":"Cesar Llanos, Ella Fitzgerald, Bernat Marti-Garcia, Steven De Decker","doi":"10.1111/vru.13432","DOIUrl":"10.1111/vru.13432","url":null,"abstract":"<p><p>Traumatic atlantoaxial hyperflexion is considered rare in cats, and only a few case reports have been published. There are other conditions that can result in a peracute onset of neurological signs localized to the cervical spinal cord segments, including acute noncompressive nucleus pulposus extrusion, ischemic myelopathy, or vertebral fractures. Appropriate treatment for these conditions can only be initiated after an accurate diagnosis has been obtained. The aim of this observational, retrospective, single-center, descriptive case series study was to describe the clinical presentation, imaging characteristics, and short-term outcome of eight cats presented with suspected traumatic atlantoaxial hyperflexion. Young male healthy domestic shorthair cats were overrepresented (7/8) and typically presented with a peracute, nonprogressive, nonpainful, nonlateralizing C1-C5 myelopathy (tetraplegia or nonambulatory tetraparesis) following a road traffic accident or head trauma. All MRI studies demonstrated a solitary, focal, ill-defined intramedullary lesion immediately dorsal to the dens of the axis, affecting both grey and white matter. All cats were treated medically. In 50% of the cats, the neurological grade improved at discharge or short-term follow-up, 25% of the cats recovered completely, one cat was static at short-term follow-up, and one cat was euthanized due to persistent forebrain signs and lack of neurological improvement.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"810-818"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142296655","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
Initial treatment experience obtained with the real-time predictive motion tracking radiotherapy platform Synchrony: A pilot study. 使用实时预测运动跟踪放疗平台 Synchrony 获得的初步治疗经验:一项试点研究。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-08-19 DOI: 10.1111/vru.13421
Nathaniel Van Asselt, Neil Christensen
{"title":"Initial treatment experience obtained with the real-time predictive motion tracking radiotherapy platform Synchrony: A pilot study.","authors":"Nathaniel Van Asselt, Neil Christensen","doi":"10.1111/vru.13421","DOIUrl":"10.1111/vru.13421","url":null,"abstract":"<p><p>This pilot study presents initial experience obtained with a real-time predictive motion tracking platform called Synchrony mounted on the Radixact radiotherapy device. Synchrony radiotherapy treatments were offered as an alternative to surgical excision for primary pulmonary carcinomas as well as in dogs in a suspected oligometastatic disease state. All dogs were treated with three fractions of 8 Gy. Six dogs with pulmonary targets were successfully treated, while we were unable to treat abdominal targets with implanted fiducials. Cranial targets showed minimal movement, while targets located adjacent to the diaphragm showed a large amplitude of movement. No acute or late clinically apparent side effects were noted in any of the dogs that received radiation therapy. A strong partial response with minimal pneumonitis was seen in follow-up imaging of the one dog where imaging was available. Synchrony motion tracking will continue to be investigated for efficacy.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"745-749"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142005406","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
Radiographic and computed tomographic findings of intrathoracic ectopic liver in a dog. 一只狗胸腔内异位肝脏的 X 射线和计算机断层扫描结果。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-08-19 DOI: 10.1111/vru.13422
Jeongyun Jeong, Jupill Chang, Seunghee Lee, Kyuchang Kim, Jaehwan Kim, Kidong Eom
{"title":"Radiographic and computed tomographic findings of intrathoracic ectopic liver in a dog.","authors":"Jeongyun Jeong, Jupill Chang, Seunghee Lee, Kyuchang Kim, Jaehwan Kim, Kidong Eom","doi":"10.1111/vru.13422","DOIUrl":"10.1111/vru.13422","url":null,"abstract":"<p><p>A 5-year-old spayed female Maltese was referred due to a suspected diaphragmatic hernia. Radiography revealed a soft tissue mass in the right caudal thorax with loss of diaphragm cupola dome-shape. A diaphragmatic hernia was considered, but surgical exploration revealed an intact diaphragm and unremarkable liver lobes. CT after a surgical inspection showed all intact liver lobes and intrathoracic mass connected to the liver. The intrathoracic mass was retracted to the abdomen by incising the diaphragm. Histopathologic examination revealed hepatocellular vacuolar degeneration, indicating an intrathoracic ectopic liver. Intrathoracic ectopic liver should be included in the differential diagnosis when diaphragmatic hernia is suspected in radiography.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"750-754"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142005407","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
Presumed renal arterial aneurysm in a cat. 一只猫的假定肾动脉瘤。
IF 1.3 2区 农林科学
Veterinary Radiology & Ultrasound Pub Date : 2024-11-01 Epub Date: 2024-07-10 DOI: 10.1111/vru.13411
Anna Lojszczyk, Aleksandra Kimicka
{"title":"Presumed renal arterial aneurysm in a cat.","authors":"Anna Lojszczyk, Aleksandra Kimicka","doi":"10.1111/vru.13411","DOIUrl":"10.1111/vru.13411","url":null,"abstract":"<p><p>A 3-year-old cat was presented for an abdominal ultrasound examination with apathy and anemia. The US revealed the enlargement of the left kidney with a hypoechoic subcapsular thickening. An abnormal, tortuous vessel was visible in the medulla with arterial flow on pulsed-wave Doppler examination. The CT examination confirmed the ultrasound findings and a presumptive diagnosis of the intraparenchymal renal aneurysm was made. Four days later, the cat presented again with a worsening of its condition. The US features were suggestive for that of an aneurysm rupture.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"667-671"},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141564516","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
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