Veterinary Radiology & Ultrasound最新文献_第8页

Imaging diagnosis: Disseminated hemangiosarcoma in a Welsh pony. 影像诊断：一匹威尔士小马患上了播散性血管肉瘤。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-09-01 Epub Date: 2024-05-24 DOI: 10.1111/vru.13386

Brianna Farber, Rebecca Urion, Eric T Hostnik

引用次数: 0

Effect of gadolinium contrast medium administration on susceptibility-weighted imaging of the canine brain. 使用钆造影剂对犬大脑感度加权成像的影响

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-09-01 Epub Date: 2024-06-17 DOI: 10.1111/vru.13395

Martina Mugnai, Edoardo Auriemma, Barbara Contiero, Delia Franchini, Eric Zini, Federica Tirrito

{"title":"Effect of gadolinium contrast medium administration on susceptibility-weighted imaging of the canine brain.","authors":"Martina Mugnai, Edoardo Auriemma, Barbara Contiero, Delia Franchini, Eric Zini, Federica Tirrito","doi":"10.1111/vru.13395","DOIUrl":"10.1111/vru.13395","url":null,"abstract":"Susceptibility-weighted imaging (SWI) is a gradient echo (GE) MRI sequence. Intravenous administration of gadolinium (Gd) may affect GE images, but its effect on SWI has not been investigated in veterinary medicine. This cross-sectional prospective study evaluated the effects of Gd on SWI. Seventy-one dogs that underwent brain MRI were included and distributed in two groups. Susceptibility-weighted imaging was performed pre- and postcontrast, obtained immediately after Gd administration (Group A: n = 35) or delayed (Group B: n = 36; median delay 19.9 min). Pre- and post-Gd SWI were analyzed for signal intensity changes in the lentiform nuclei of gray matter (GM), in the centrum semiovale of white matter (WM), and in brain lesions. No difference in GM signal intensity was identified in either group between pre- and postcontrast images (Group A, P = .395; Group B, P = .895). In group A, WM signal intensity was lower in pre- than post-Gd sequences (P = .019). Brain lesions were identified in 30/71 (41%) cases; the signal intensity of intracranial lesions was significantly lower in pre- than post-Gd images in both groups (P < .001); the number of lesions influenced the difference in signal intensity in group B (P = .043). Susceptibility artifacts did not change in appearance between pre- and postcontrast images in either the normal brain or in parenchymal lesions. In conclusion, Gd may modify the signal intensity of WM and brain lesions but does not affect the susceptibility artifacts and does not interfere with SWI interpretation.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"539-546"},"PeriodicalIF":1.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141331912","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 anatomic variations of the phrenicoabdominal veins in cats. 猫膈腹静脉的计算机断层扫描解剖变异。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-09-01 Epub Date: 2024-07-09 DOI: 10.1111/vru.13408

Dario Nappo, Chiara Massarenti, Maria Elena Andreis, Eric Zini, Giuseppe Lacava, Silvia Rabba, Edoardo Auriemma

{"title":"Computed tomographic anatomic variations of the phrenicoabdominal veins in cats.","authors":"Dario Nappo, Chiara Massarenti, Maria Elena Andreis, Eric Zini, Giuseppe Lacava, Silvia Rabba, Edoardo Auriemma","doi":"10.1111/vru.13408","DOIUrl":"10.1111/vru.13408","url":null,"abstract":"There are no published reports describing the anatomic variations of the phrenicoabdominal (PhAbd) veins in cats. The aim of this study was to evaluate the anatomic variations of the PhAbd veins in cats without adrenal disease. This is an anatomic study. Abdominal CT images of cats acquired from January 2021 to February 2023 were retrospectively reviewed. Inclusion criteria were the presence of pre- and postcontrast CT images of the abdomen and the absence of any abdominal diseases that compromise the left and right PhAbd veins visualization. A total of 128 cats were included. Three different vascular anatomic variations were found in the distal pericaval segment of the left phrenicoabdominal (LPhAbd) vein. In the first type, found in 65 cases (50.8%), the LPhAbd vein drained directly into the caudal vena cava. In the second type defined IIa, found in 25 cases (19.5%), the LPhAbd vein drained into the distal third of the left renal vein, less than 5 mm from its opening into the caudal vena cava. In the third type defined IIb, found in 38 cases (29.7%), the LPhAbd vein drained into the distal third of the left renal vein, more than 5 mm from its opening into the caudal vena cava. The right phrenicoabdominal vein had a consistent path and drained into the caudal vena cava in all cases. The knowledge of these vascular variations is expected to help the surgeon during adrenalectomy due to masses with vascular invasion in cats.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"640-644"},"PeriodicalIF":1.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141559899","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

Calendar of Important Dates. 重要日期日历。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-07-14 DOI: 10.1111/vru.13407

引用次数: 0

Comparison of a new immobilization method using a reusable 3-point fixation cylinder system and bite-block type immobilization methods in veterinary radiotherapy. 在兽医放射治疗中使用可重复使用的三点固定圆筒系统的新型固定方法与咬合块式固定方法的比较。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-07-01 Epub Date: 2024-03-30 DOI: 10.1111/vru.13364

Shinichiro Yoda, Takuya Maruo, Haruka Arai, Rihoko Takahashi, Takuya Kusaka, Yuta Nishiyama, Hideki Kayanuma

{"title":"Comparison of a new immobilization method using a reusable 3-point fixation cylinder system and bite-block type immobilization methods in veterinary radiotherapy.","authors":"Shinichiro Yoda, Takuya Maruo, Haruka Arai, Rihoko Takahashi, Takuya Kusaka, Yuta Nishiyama, Hideki Kayanuma","doi":"10.1111/vru.13364","DOIUrl":"10.1111/vru.13364","url":null,"abstract":"In veterinary radiotherapy, highly reproducible immobilization is important for accurate irradiation. Consequently, we developed a new reusable head-immobilization method for dogs using cylinders. This study aimed to compare the accuracy of our novel immobilization method using cylinders with that of bite-block type immobilization methods. Three immobilization methods were compared: bite-block only, bite-block combined with torso immobilization, and immobilization using cylinders. Five beagles with canine teeth underwent CT five times for each of the three immobilization methods. One beagle without canine teeth underwent CT 15 times using each method. Three maxillary landmarks (maxillary incisor, frontal sinus, and occipital bone) and one mandibular landmark (mandibular incisor) were established, and the errors in each immobilization method were measured. For all head landmarks, the error in the immobilization method using cylinders was the most reproducible, with the smallest errors. No significant differences were observed in the time required for immobilization. Although there were limitations (such as the use of dogs from a single breed, a single episode of anesthesia, no disassembly of the immobilization system between scans, and the same person performing the positioning on the same day), we found our new reusable immobilization method using cylinders was the most accurate among the three compared methods. This was a proof-of-principle study to evaluate head immobilization using cylinders, and further investigations are needed to confirm its clinical utility.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":" ","pages":"323-333"},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140330193","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

Calendar of Important Dates. 重要日期日历。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-07-01 Epub Date: 2024-07-08 DOI: 10.1111/vru.13404

引用次数: 0

AWARDS AND AUTHOR INSTRUCTIONS. 奖项和作者说明。

IF 1.3 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-07-01 DOI: 10.1111/vru.13117

引用次数: 0

Prevalence of presumed endplate junction failure at the lumbosacral intervertebral junction in dogs on computed tomography 通过计算机断层扫描推测狗腰骶椎椎间关节内板连接失败的发生率

IF 1.7 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-06-22 DOI: 10.1111/vru.13398

Anna R. Tellegen, Martijn Beukers, Björn P. Meij, Marianna A. Tryfonidou, Stefanie Veraa

{"title":"Prevalence of presumed endplate junction failure at the lumbosacral intervertebral junction in dogs on computed tomography","authors":"Anna R. Tellegen, Martijn Beukers, Björn P. Meij, Marianna A. Tryfonidou, Stefanie Veraa","doi":"10.1111/vru.13398","DOIUrl":"https://doi.org/10.1111/vru.13398","url":null,"abstract":"Lumbosacral intervertebral disc herniation (IVDH) is a common cause of lower back pain in dogs and humans. In humans, the vertebral endplate to annulus fibrosus (AF) attachment was implicated as an alternative failure site besides rupture through the dorsal AF (AFF). Endplate junction failure (EPJF) is characterized by IVDH, accompanied by endplate irregularities (type A), rim avulsions (type B), or larger bony avulsions on one (type C) or both endplates (type D), associated with an adjacent endplate defect. This retrospective study reports the CT prevalence of presumed EPJF in dogs and its associations with signalment and other lumbosacral CT abnormalities. CT scans, including the lumbosacral spine of dogs obtained at two institutions, were assessed, yielding 324 scans. Presumed EPJF was found in 69 dogs (21%) and AFF in 68 dogs (21%), commonly at the caudal endplate of the last lumbar vertebra (71%). The remaining 187 dogs did not show presumed EPJF or AFF. Presumed EPJF type A occurred in 49/69, type B in 19/69, and type C in 1/69 dogs. Univariable logistic regression showed that presumed EPJF was associated with significantly higher IVDH grades than AFF. In the multiple regression model, presumed EPJF and AFF remained associated with increasing age and spondylosis deformans. Presumed EPJF was associated with vertebral endplate sclerosis and AFF with zygapophyseal joint osteoarthritis. In conclusion, presumed EPJF was observed on CT in 21% of dogs with lumbosacral IVDH. Prospective studies correlating EPJF on CT with clinical, surgical, and histopathological findings are needed for a better understanding of the underlying pathology and clinical relevance.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"16 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506743","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

The vertebral right heart index: A new radiographic method to assess right heart enlargement in dogs 脊椎右心指数：评估犬右心室肥大的新放射学方法

IF 1.7 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-06-21 DOI: 10.1111/vru.13402

Caterina Puccinelli, Tommaso Vezzosi, Giovanni Grosso, Rosalba Tognetti, Edoardo Auriemma, Oriol Domenech, Simonetta Citi

{"title":"The vertebral right heart index: A new radiographic method to assess right heart enlargement in dogs","authors":"Caterina Puccinelli, Tommaso Vezzosi, Giovanni Grosso, Rosalba Tognetti, Edoardo Auriemma, Oriol Domenech, Simonetta Citi","doi":"10.1111/vru.13402","DOIUrl":"https://doi.org/10.1111/vru.13402","url":null,"abstract":"In veterinary medicine, the radiographic assessment of right heart enlargement (RHE) is essentially subjective. The aim of this study was to evaluate the vertebral right heart index (VRHi) as a new quantitative radiographic method to detect RHE in dogs. This was a multicenter, retrospective, observational study, including dogs with RHE and control dogs. All dogs had to have a thoracic radiographic study and a complete echocardiography on the same day. Right heart enlargement was defined as the presence of right atrial enlargement, right ventricular enlargement, and/or hypertrophy based on echocardiography. For the radiographic study, all the radiographic views available for each case were considered for measurement: right lateral (RL), left lateral (LL), ventrodorsal (VD), and dorsoventral (DV). The VRHi was measured using LL, RL, VD, and DV views. A total of 204 dogs were included: 91 dogs with RHE and 113 control dogs. The VRHi (RL), the VRHi (LL), and the VRHi (VD) were significantly greater in dogs with RHE compared with controls (P < .0001). The best diagnostic accuracy was observed for VRHi (LL) (area under the curve [AUC] 0.86, P < .0001; cutoff ≥ 3.5 vertebrae, sensitivity [Se] 71%, specificity [Sp] 89%), followed by VRHi (RL) (AUC 0.85, P < .0001; cutoff ≥ 3.5 vertebrae, Se 68%, Sp 86%) and VRHi (VD) (AUC 0.80, P = .0004; cutoff ≥ 3.0 vertebrae, Se 57%, Sp 95%). In conclusion, the lateral VRHi in LL and RL and the VD VRHi could represent useful radiological tools for the detection of RHE in dogs.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"16 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141506746","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 tomography‐derived structural analysis for the likelihood of pathologic fracture in canine antebrachial osteosarcoma 计算机断层扫描结构分析犬胫骨骨肉瘤发生病理性骨折的可能性

IF 1.7 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2024-06-21 DOI: 10.1111/vru.13403

Michele A. Steffey, Tanya C. Garcia, Angela Gorney, Susan M. Stover, Allison L. Zwingenberger

{"title":"Computed tomography‐derived structural analysis for the likelihood of pathologic fracture in canine antebrachial osteosarcoma","authors":"Michele A. Steffey, Tanya C. Garcia, Angela Gorney, Susan M. Stover, Allison L. Zwingenberger","doi":"10.1111/vru.13403","DOIUrl":"https://doi.org/10.1111/vru.13403","url":null,"abstract":"Determining the risk of pathologic fracture in dogs with a primary bone tumor would aid in case selection for in‐situ treatment options. Prior research found strong relationships between in vitro strength of canine antebrachii with primary bone tumors and CT‐derived metrics. This study assesses the prognosis for pathologic fracture in dogs with distal radial bone tumors using CT‐derived structural analysis metrics. CT images of the antebrachium in dogs with aggressive osseous lesions of the radius were used to calculate structural rigidity and failure forces, including axial rigidity (AR), craniocaudal bending rigidity (BR), torsional rigidity (TR), and failure forces for a slightly‐curved/asymmetric beam (Fs) or a curved beam (Fc). Metrics were compared with the clinical outcome of radial fracture. Eight of 19 dogs with CT‐derived metrics developed a radial fracture. The prognostic potential of the metrics to discriminate fractured and nonfractured bones was analyzed using receiver operating characteristic curves (area under the curve), stepwise logistic regression, and classification regression (CART) analyses. Fc was the most sensitive and specific metric for prognosing fracture occurrence (AUC = 0.864). When dog body weight (BW) was included, all five metrics had AUC > 0.705. Fc was the best predictor of fracture using stepwise logistic regression and CART analysis, followed by BR. An indication of fracture probability can be determined by normalizing Fc or BR with dog BW or by using the logistic regression equation of either metric with dog BW. Results warrant further analysis of a larger cohort to evaluate fracture likelihood in dogs with antebrachial bone neoplasia.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"62 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141530549","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