Veterinary Radiology & Ultrasound最新文献_第9页

Visual Assessment of Rib Cartilage Mineralization in Thoracic Radiographs as an Indicator of Age in Juvenile Dogs of Various Breeds. 胸片上肋骨软骨矿化作为不同品种幼犬年龄指标的视觉评价。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-05-01 DOI: 10.1111/vru.70177

Monika Isabel Hoppe, Carolin Fischer, Mareike-Kristin Marx, Sebastian Schaub

{"title":"Visual Assessment of Rib Cartilage Mineralization in Thoracic Radiographs as an Indicator of Age in Juvenile Dogs of Various Breeds.","authors":"Monika Isabel Hoppe, Carolin Fischer, Mareike-Kristin Marx, Sebastian Schaub","doi":"10.1111/vru.70177","DOIUrl":"10.1111/vru.70177","url":null,"abstract":"Anecdotally, the onset of mineralization of rib cartilage, as visualized by radiographic studies, is assumed to occur at 3 months of age. Determining radiographically the exact day when rib cartilage mineralization begins in juvenile dogs could aid in age estimation of young dogs with unknown histories. This retrospective study aimed to establish the radiographic onset and progression of rib cartilage mineralization. A number of 1310 dogs across 132 different breeds were included, and 2463 laterolateral or orthogonal radiographs of newborn to 400-day-old dogs were evaluated. Rib cartilage mineralization was divided into three grades (I: no radiographic evidence of mineralization; II: partial mineralization [speckled or fine linear mineralization]; and III: complete rib cartilage mineralization). Dogs were divided into five breed groups (toy, small, medium, large, and giant) depending on the estimated final body weight. The earliest radiographically visible rib cartilage mineralization in all dogs was 71 days for Grade II and 132 days for Grade III. Between 132 and 168 days, all three grades of rib cartilage mineralization were present. After 223 days, only complete rib cartilage mineralization was observed. Statistical analysis showed that small-breed dogs had significantly earlier onset and complete rib cartilage mineralization than medium, large, and giant breeds (p < 0.02). Chondrodystrophic dogs of the toy, small, and medium-breed groups showed significantly earlier onset of costal cartilage mineralization than non-chondrodystrophic dogs of the same breed group (p < 0.001). The predominance of chondrodystrophic breeds among small dogs may explain their earlier rib cartilage mineralization.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 3","pages":"e70177"},"PeriodicalIF":1.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13101407/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147782357","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

Elastographic Evaluation of the Adrenal Glands of Dogs With Hypercortisolism. 高皮质醇血症犬肾上腺的弹性成像评价。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70156

Fernanda de Paula Sesti, Gabriel Marchiori Gonzaga, Bruno Alberigi

{"title":"Elastographic Evaluation of the Adrenal Glands of Dogs With Hypercortisolism.","authors":"Fernanda de Paula Sesti, Gabriel Marchiori Gonzaga, Bruno Alberigi","doi":"10.1111/vru.70156","DOIUrl":"10.1111/vru.70156","url":null,"abstract":"Elastography is a promising technique for assessing tissue stiffness in the adrenal glands of dogs with hypercortisolism (HC). This study compared 30 dogs, 15 of which were healthy (control group) and 15 diagnosed with HC, confirmed by low-dose dexamethasone suppression test (n = 11) or ACTH stimulation test (n = 4) without prior treatment. Ultrasound measurements revealed a significant increase in the dimensions of the adrenal glands, especially in the left adrenal gland, with more frequent changes in the cranial pole (86.7%, p = 0.00003) and caudal pole (80%, p = 0.00005). Qualitative elastography indicated varied tissue stiffness patterns in sick dogs, with a predominance of mixed patterns (46.7%), whereas dogs in the control group showed uniform moderate stiffness. Semiquantitative analysis showed that the adrenal glands of sick dogs were significantly stiffer compared to the adjacent mesentery, with variations ranging from 33% to 80% stiffer. The Mann-Whitney test revealed statistically significant differences in adrenal stiffness between the groups (U = 4.500; Z = -4.621; p < 0.001). These findings suggest that elastography, combined with conventional ultrasonography, may be an effective complementary diagnostic tool in detecting adrenal changes in dogs with HC.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 2","pages":"e70156"},"PeriodicalIF":1.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13000670/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147481959","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

Performance of an Artificial Intelligence Convolution Neural Network Software for the Detection of Confirmed Heart Failure in Dogs and Cats. 人工智能卷积神经网络软件在狗和猫确认心力衰竭检测中的性能。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70144

Lauren Ellingsberg, Mauricio Solano, Jacqueline Milton Hicks

{"title":"Performance of an Artificial Intelligence Convolution Neural Network Software for the Detection of Confirmed Heart Failure in Dogs and Cats.","authors":"Lauren Ellingsberg, Mauricio Solano, Jacqueline Milton Hicks","doi":"10.1111/vru.70144","DOIUrl":"10.1111/vru.70144","url":null,"abstract":"An independent dataset was used to retrospectively test the ability of an artificial intelligence (AI) program to detect radiographic signs of right or left heart failure (HF) and combine these findings to make a radiographic assessment of HF in dogs and cats. Experimental groups included 105 confirmed cases of heart disease in failure and a control group of 40 confirmed cases of heart disease not in failure. The program had an 87.04% sensitivity and an 80% specificity for radiographically concluding HF in dogs. Compared to true findings, the program had a 98% sensitivity in detecting an interstitial pattern, 100% sensitivity in detecting cardiomegaly, and 95% sensitivity in detecting a vascular pattern among other findings. In cats, the program had a 96% sensitivity in detecting an interstitial pattern, 96% sensitivity in detecting cardiomegaly, and 94% sensitivity in detecting a vascular pattern, among other findings. Despite this high sensitivity performance, the program only combines these findings to conclude HF with a sensitivity of 9.8% and specificity of 95%. The AI software had a similar success rate compared to radiologists in identifying the individual findings of HF in both species. This software has reached a level of sophistication to identify the different abnormalities as accurately as a large radiology group and also combine these findings and arrive at the radiographic conclusion of HF in dogs. The performance of this program in cats highlights the importance for veterinarians to utilize their medical knowledge to interpret the AI report like any other ancillary diagnostic test.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 2","pages":"e70144"},"PeriodicalIF":1.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146198153","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

A Presumed Dysphagia Aortica in a Siamese Cat. 暹罗猫的吞咽困难。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70154

Alexis Coquet, Laurent Blond, Franck Jolivet, Clément Baudin-Tréhiou

引用次数: 0

Computed Tomography Features of Pulmonary Metastatic Nodules Help Narrow the Differential Diagnosis of the Primary Tumor. 肺转移结节的计算机断层特征有助于缩小原发肿瘤的鉴别诊断范围。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70152

Federica Rossi, Mirko Mattolini, Valentina Meucci, Simonetta Citi

{"title":"Computed Tomography Features of Pulmonary Metastatic Nodules Help Narrow the Differential Diagnosis of the Primary Tumor.","authors":"Federica Rossi, Mirko Mattolini, Valentina Meucci, Simonetta Citi","doi":"10.1111/vru.70152","DOIUrl":"10.1111/vru.70152","url":null,"abstract":"The lungs are a common site of metastasis, with recognized computed tomography (CT) features of different histotypes in humans. Little information is available for dogs. This retrospective, observational study compared the CT characteristics of pulmonary metastases from different primary cancers in dogs. CT studies of two groups of dogs with primary neoplasia and pulmonary metastases were reviewed. Group 1 (n = 271) included dogs with a definitive diagnosis of either the primary neoplasia, the metastases, or both, and Group 2 (n = 126) was a subgroup with both diagnoses confirmed. Six primary tumor histotypes were analyzed: epithelial cancer, bone sarcoma, soft tissue sarcoma, melanoma, hemangiosarcoma (HSA), and histiocytic sarcoma. Recorded features included nodule number, distribution, shape, size, margins, attenuation, pattern of enhancement, and the presence of other abnormalities. For both groups, CT features statistically correlated with tumor histotype (p < 0.0001) included ill-defined margins and cavitary lesions in carcinomas; bronchial thickening and pleural effusion in pulmonary carcinomas; a higher number of nodules, spotty postcontrast linear to amorphous strong hyperdensity (SPLASH) sign, halo sign, and extrapulmonary metastases in HSAs; and larger nodule size (>1 cm), air bronchograms, and thoracic lymphadenomegaly in histiocytic sarcomas and incomplete nodule mineralization in bone sarcomas. CT features of lung metastases help prioritize neoplasia histotype in dogs, aiding diagnosis if the primary tumor is not obvious, if two cancers are potential origins of the metastases, or when the pulmonary nodules cannot be sampled.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 2","pages":"e70152"},"PeriodicalIF":1.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147460449","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

Spinal Dural Ossifications Are Hyperintense on T1-Weighted Sequence and May Mimic Dural Lesions. 硬脊膜骨化在t1加权序列上呈高信号，可能与硬脊膜病变相似。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70148

C Nanni, S Morabito, C Mattei, M Baldinetti, S Specchi

{"title":"Spinal Dural Ossifications Are Hyperintense on T1-Weighted Sequence and May Mimic Dural Lesions.","authors":"C Nanni, S Morabito, C Mattei, M Baldinetti, S Specchi","doi":"10.1111/vru.70148","DOIUrl":"10.1111/vru.70148","url":null,"abstract":"Spinal dural ossifications (SDOs) are bone plaques on the dura mater surface. They are usually incidental findings in humans and dogs, and rarely can cause clinical signs. The authors noticed that SDOs on magnetic resonance imaging (MRI) may appear hyperintense on a pre-contrast T1-weighted (T1W) sequence. This study aimed to assess the MRI signal of SDOs in dogs. For this retrospective descriptive study, the hospital archive was searched for dogs that underwent both a pre-contrast computed tomography (CT) study and at least one pre-contrast T1W MRI sequence, from January 2020 to April 2024. CT images were evaluated for the presence of SDOs, and the MRI signal of the lesions was assessed at the same level by one first-year diagnostic imaging resident and three board-certified radiologists. Dogs' breed, gender, and age were recorded. Ten dogs were included. Adult dogs (median = 10.5 years) and large breed dogs (median = 31 kg) were overrepresented. On CT, all SDOs appeared as punctiform or linear mineral-attenuating structures on the dura mater. SDOs were predominantly hyperintense on T1W and hypointense on T2-weighted (T2W) images. When fluid attenuating inversion recovery (FLAIR), short tau inversion recovery (STIR), and T2*W sequences were available, SDOs were hyperintense, iso-/hypointense, and presented signal void, respectively. This study confirms SDOs are commonly T1 hyperintense. This signal likely depends on the architecture of microcalcifications: calcium traps water protons, slowing their rotation to near Larmor frequency, and shortening T1 recovery times. Pre-contrast T1W sequences should be carefully evaluated to avoid misinterpreting SDOs for contrast-enhancing dural pathologies (such as plaque-like neoplastic dural lesions) or punctiform hemorrhage.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 2","pages":"e70148"},"PeriodicalIF":1.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147487430","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 Findings in Canine Otitis Externa. 犬外耳炎的ct表现。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70149

Andrea Vila Cabaleiro, Tessa V Procter, Anita Patel, Tobias Schwarz, Helen Dirrig, Yi Lin Tan

{"title":"Computed Tomographic Findings in Canine Otitis Externa.","authors":"Andrea Vila Cabaleiro, Tessa V Procter, Anita Patel, Tobias Schwarz, Helen Dirrig, Yi Lin Tan","doi":"10.1111/vru.70149","DOIUrl":"10.1111/vru.70149","url":null,"abstract":"Otitis externa (OE) is a common condition in dogs. Otoscopic examination is the standard diagnostic procedure, but not all external ear canal structures can be assessed otoscopically. Computed tomography (CT) has become a gold standard in the assessment of middle ear disease. This study aimed to assess the validity of CT for canine OE and to compare CT-specific and otoscopy-specific findings that are consistent with OE. CT studies of dogs referred for suspected OE were blindly reviewed by three observers for ear canal wall mineralization, thickness, and contrast enhancement. Otoscopic findings were used as the reference standard. The sensitivity and specificity of CT for the diagnosis of OE were 98.2% (95% confidence interval [CI]: 90.4%-99.7%) and 60.0% (95% CI: 10.7%-76.6%), respectively. The positive predictive value (PPV) was 84.4%, and there was substantial agreement (weighted κ = 0.65) between CT and otoscopic diagnosis of OE. There was moderate agreement (weighted κ = 0.47) between the presence of CT ear canal wall contrast enhancement and the degree of erythema otoscopically, and moderate agreement (weighted κ = 0.58), comparing the consensus CT grade for ear canal wall thickness to the grade of ear canal stenosis on otoscopic examination. The presence of external ear canal wall mineralization on CT was independent of disease (p = 0.49) and disease duration (p = 0.26), indicating mineralization of the external ear canal wall on CT is not necessarily related to chronic OE. There is substantial agreement between CT and otoscopy, supporting its use as a diagnostic technique for OE.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 2","pages":"e70149"},"PeriodicalIF":1.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12964102/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147366734","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

Ultrasound, Retrograde Urethrography, and Computed Tomography Diagnosis of Urinary Bladder Torsion in a Dog After Resection of a Vaginal Mass. 犬阴道肿块切除术后膀胱扭转的超声、逆行尿道造影和计算机断层诊断。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70151

Joo-Young Lee, Jinsu Kang, Ye-In Oh, Soyeon Park, Min Jang, Kija Lee, Sang-Kwon Lee

引用次数: 0

Ultrasonographic Diagnosis of Bilateral Spontaneous Ovarian Hemorrhage in a 7-Year-Old Female Black-and-White Ruffed Lemur (Varecia variegata). 7岁雌性斑狐猴双侧自发性卵巢出血的超声诊断。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70150

Alexander R Chapple, Paula Rodriguez, Siobhan S Rickert, Jordan Wilson, Jenessa Gjeltema

引用次数: 0

Magnetic Resonance and Computed Tomographic Findings in a Case of Encephaloclastic Porencephaly in a Sulawesi Crested Macaque. 苏拉威西冠猕猴脑碎裂性脑裂症的磁共振和计算机断层扫描结果。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-03-01 DOI: 10.1111/vru.70147

Elsa Tytgat, Jimmy Saunders, Jonas Spruyt, Francis Vercammen, Griet Vercauteren, Ine Cornelis, Els Raes, Emmelie Stock

引用次数: 0