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Karadeniz H, Cerit M, Güler AA, Salman RB, Satış H, Yıldırım D, Göker B, Küçük H, Öztürk MA, Tufan A. Lacrimal gland ultrasonography and elastography as a diagnostic and activity tool for primary Sjögren's syndrome. Int J Rheum Dis 2023. [PMID: 37137730 DOI: 10.1111/1756-185x.14702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 03/08/2023] [Accepted: 04/08/2023] [Indexed: 05/05/2023]
Abstract
OBJECTIVE To investigate the effectiveness of 2-dimensional shear wave elastography (2D-SWE) in the assessment of lacrimal gland involvement in primary Sjögren's syndrome (pSS) and to determine the association between ultrasonographic findings and clinical activity measures. METHOD Forty-six patients who fulfilled the 2016 American College of Rheumatology/European League Against Rheumatism (EULAR) classification criteria of pSS and 23 age and gender-matched healthy control subjects were enrolled. Clinical, laboratory and labial biopsy histopathologic characteristics of patients were recorded. Disease activity of pSS and severity of ocular dryness were evaluated with EULAR Sjögren's Syndrome Patient Reported Index (ESSPRI) and Ocular Surface Disease Index (OSDI), respectively. Parotid and lacrimal gland architectures were assessed by B-mode ultrasound and 2D-SWE techniques. RESULTS Mean shear wave elastography measurements, reflecting loss of elasticity, were remarkably higher in pSS patients compared to healthy subjects both in the lacrimal and parotid glands (8.99 ± 3.45 vs 3.68 ± 1.76 in lacrimal glands and 14.14 ± 4.39 vs 7.83 ± 1.69 in parotid glands, all P < 0.001). Shear wave elasticity of lacrimal glands was correlated with OSDI and ESSPRI scores (r = 0.69; P = 0.001 and r = 0.58; P = 0.001, respectively). A cut-off value of 4.6 kPa in the lacrimal gland elasticity discriminated pSS patients from healthy subjects with a sensitivity of 94% and specificity of 87%. CONCLUSION Results of our study suggest that lacrimal glands lose elasticity in patients with pSS and the assessment of elasticity with 2D-SWE might help to classify patients as having pSS. Further studies are needed to validate the diagnostic utility of lacrimal 2D-SWE by including diseases other than pSS.
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Affiliation(s)
- Hazan Karadeniz
- Department of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Mahinur Cerit
- Department of Radiology, Gazi University Faculty of Medicine, Ankara, Turkey
| | | | | | - Hasan Satış
- Department of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Derya Yıldırım
- Department of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Berna Göker
- Department of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Hamit Küçük
- Department of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Akif Öztürk
- Department of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Abdurrahman Tufan
- Department of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
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Alfradique VAP, Netto DLS, Alves SVP, Machado AF, Novaes CM, Penitente-Filho JM, Machado-Neves M, Lopes MS, Guimarães SEF. The impact of FSH stimulation and age on the ovarian and uterine traits and histomorphometry of prepubertal gilts. Domest Anim Endocrinol 2023; 83:106786. [PMID: 36848729 DOI: 10.1016/j.domaniend.2023.106786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 01/14/2023] [Accepted: 01/19/2023] [Indexed: 01/28/2023]
Abstract
This study investigated the effect of age and follicle stimulating hormone (FSH) treatment on the estradiol (E2) plasma concentration, ovarian follicle development, endometrial histomorphometry, and ultrasonographic parameters of the ovaries and uterus in prepubertal gilts. Thirty-five prepubertal gilts were grouped according to age (140 or 160 d), and within each age, gilts were allotted to receive 100 mg of FSH (treated; G140 + FSH [n = 10] and G160 + FSH [n = 7]) or saline solution (control; G140 + control [n = 10] and G160 + control [n = 8]). The total dose of FSH was divided into 6 similar doses administered every 8 h (days 0-2). Before and after FSH treatment, blood sample was collected, and transabdominal scanning of the ovaries and uterus was performed. Twenty-four hours after the last FSH injection, the gilts were slaughtered and their ovaries and uterus were processed for histological and histomorphometric analysis. The histomorphometric parameters of the uterus differed (P < 0.05) between prepubertal gilts at 160 d and 140 d of age. Moreover, changes (P < 0.05) in uterine and ovarian ultrasound images occurred between 140 and 160 d of age. Age and FSH treatment did not affect (P > 0.05) E2 plasma concentrations. Follicle stimulating hormone treatment did not affect (P > 0.05) the early stage of folliculogenesis in the prepubertal gilts; however, the number of early atretic follicles decreased (P < 0.05) after the FSH treatment. Follicle stimulating hormone administration increased (P < 0.05) the number of medium follicles and decreased (P < 0.05) the number of small follicles in 140 and 160 d old gilts. In the endometrium, luminal/glandular epithelium height and glandular diameter increased (P < 0.05) after FSH treatment. Thus, injections of 100 mg of FSH stimulate the endometrium epithelium and induce follicular growth to a medium follicle size without affecting the preantral stages in prepubertal gilts; also, the uterine macroscopic morphometry does not change from 140 to 160 d of age.
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Affiliation(s)
- V A P Alfradique
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil.
| | - D L Souza Netto
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - S V P Alves
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - A F Machado
- Departamento de Zootecnia, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - C M Novaes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - J M Penitente-Filho
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - M Machado-Neves
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - M S Lopes
- Topigs Norsvin - Brasil, Curitiba, PR, Brazil
| | - S E F Guimarães
- Departamento de Zootecnia, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil.
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Keleş A, Türe U. Cottonoid-guided intraoperative ultrasonography in neurosurgery: a proof-of-concept single surgeon case series. Neurosurg Rev 2022; 45:2289-2303. [PMID: 35112223 DOI: 10.1007/s10143-021-01727-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/07/2021] [Accepted: 12/25/2021] [Indexed: 11/30/2022]
Abstract
Ultrasonography was introduced into neurosurgery in the 1950s, but its successful utilization as an intraoperative tool dates from the early 1980s. However, it was not used widely because of limited technology, a lack of specific training, and, most importantly, the concurrent evolution of computerized tomography and magnetic resonance imaging. The intraoperative use of cottonoid patties as acoustical markers was first described in 1984, but the practice did not gain acceptance, and no articles have been published since. Herein, we reconsider the echogenic properties of the surgical cottonoid patty and demonstrate its usefulness with intraoperative ultrasonography (ioUS) in neurosurgical practice as a truly real-time neuronavigation tool. We also discuss its advantages and compare it with other intraoperative image guidance tools. The echogenic properties of the handmade cottonoid patties in various sizes used with ioUS are described. Details of our cottonoid-guided ioUS technique and its advantages with illustrated cases are also described. As an echogenic marker, cottonoid patties can be easily recognized with ioUS. Their usage with ultrasonography provides truly real-time anatomical orientation throughout the surgery, allowing easy access to intraparenchymal pathologies, and precise and safer resection. Cottonoid-guided ioUS helps not only to localize intraparenchymal pathologies but also to delineate the exact surgical trajectory for each type of lesion. Furthermore, it is not affected by brain shift and distortion. Thus, it is a truly real-time, dynamic, cost-effective, and easy-to-use image guidance tool. This technique can be used safely for every intraparenchymal pathology and increases the accuracy and safety of the surgeries.
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Affiliation(s)
- Abdullah Keleş
- Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul, Turkey
| | - Uğur Türe
- Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul, Turkey.
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Zarrad M, Duflos C, Marin G, Benhamou M, Laroche JP, Dauzat M, Quéré I, Mestre-Godin S. Skin Layer Thickness and Shear Wave Elastography Changes Induced by Intensive Decongestive Treatment of Lower Limb Lymphedema. Lymphat Res Biol 2021; 20:17-25. [PMID: 34939855 PMCID: PMC8892981 DOI: 10.1089/lrb.2021.0036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: A detailed quantitative evaluation would be beneficial for management of patients with limb lymphedema. Methods and Results: In 47 patients with lower limb lymphedema at International Society of Lymphology clinical stage 2A (18 limbs), 2B (41 limbs), and 3 (13 limbs), we measured the limb circumference and thickness of epidermis, dermis, and subcutis layers with B-mode ultrasonography and subcutis elastic modulus with ultrafast shear wave velocity (ultrasound elastography) at 5 anatomical levels (M1 to M5) before and after a 3- to 5-day intensive decongestive therapy (IDT) session. Limb circumference and thickness of the epidermis, dermis, and subcutis were greater in the 72 limbs with lymphedema than in the 22 unaffected limbs before and after IDT. The affected limb volume was 10,980 [8458-13,960] mL before and 9607 [7720-11,830] mL after IDT (p < 0.0001). The IDT-induced change in subcutis thickness was -9 [-25 to 13]% (NS), -11 [-26 to 3]% (p = 0.001), -18 [-40 to -1]% (p < 0.0001), -15 [-35 to 3]% (p = 0.0003), and -25 [-45 to -4]% (p < 0.0001) and significantly correlated with the change in elastic modulus, which was 13 [-21 to 90]% (p = 0.004), 33 [-27 to 115]% (p = 0.0002), 40[-13 to 169]% (p < 0.0001), 9 [-36 to 157]% (p = 0.024), and -13 [-40 to 97]% (NS), respectively, at the M1, M2, M3, M4, and M5 levels. Intraobserver reproducibility was satisfactory for skin thickness and fairly good for elastography, but interobserver reproducibility was poor or unacceptable. Conclusions: IDT reduced the circumference and subcutis thickness of lower limbs with lymphedema and increased their elastic modulus, implying greater tissue stiffness probably due to fluid evacuation. Although subcutis thickness measurement proved to be reliable, technological and methodological improvements are required before ultrasonographic elastography can be used in clinical practice.
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Affiliation(s)
- Merriem Zarrad
- Vascular Medicine Department, Montpellier University Hospital, Montpellier, France
| | - Claire Duflos
- Clinical Research and Epidemiology Unit, Medical Information Department, Montpellier University Hospital, Montpellier, France
| | - Gregory Marin
- Clinical Research and Epidemiology Unit, Medical Information Department, Montpellier University Hospital, Montpellier, France
| | - Murielle Benhamou
- Vascular Medicine Department, Montpellier University Hospital, Montpellier, France.,Vascular Medicine Department, Lymphology Unit, Montpellier University Hospital, Montpellier, France
| | - Jean-Pierre Laroche
- Vascular Medicine Department, Lymphology Unit, Montpellier University Hospital, Montpellier, France
| | - Michel Dauzat
- Vascular Medicine, Nimes University Hospital, Nimes, France
| | - Isabelle Quéré
- Vascular Medicine Department, Lymphology Unit, Montpellier University Hospital, Montpellier, France.,Desbrest Institute of Epidemiology and Public Health (IDESP), INSERM-Montpellier University, Montpellier, France
| | - Sandrine Mestre-Godin
- Vascular Medicine Department, Lymphology Unit, Montpellier University Hospital, Montpellier, France.,Desbrest Institute of Epidemiology and Public Health (IDESP), INSERM-Montpellier University, Montpellier, France
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Jiang Y, Zhang M, Zhu Y, Zhu D. Diagnostic role of contrast-enhanced ultrasonography versus conventional B-mode ultrasonography in cirrhotic patients with early hepatocellular carcinoma: a retrospective study. J Gastrointest Oncol 2021; 12:2403-2411. [PMID: 34790401 DOI: 10.21037/jgo-21-611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/14/2021] [Indexed: 12/15/2022] Open
Abstract
Background Early diagnosis of hepatocellular carcinoma (HCC) is very important for the prognosis of patients. However, there are very few studies that compared the diagnostic accuracy of contrast-enhanced ultrasonography (CEUS) and B-mode ultrasonography for early HCC in cirrhotic patients. Methods This retrospective study included cirrhotic patients, who were suspected of early HCC between January 2020 and June 2021. The diagnosis of patients was based on the pathology results of surgery or biopsy. Demographic and clinical characteristics of included patients were recorded. The diagnoses of suspected lesions using both types of ultrasonography were recorded, and the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and diagnostic accuracy of early HCC in cirrhotic patients were calculated. Results Eventually, 137 patients with solitary lesions in the liver were included in this study, including 89 patients diagnosed with HCC and 48 patients diagnosed with non-HCC. The median diameter of suspected lesions was 26 mm, and the median level of alpha fetoprotein (AFP) was 37.2 ng/mL. When comparing the demographic and clinical characteristics of cirrhotic patients with HCC and non-HCC, it was found that patients with HCC had significantly higher levels of AFP than those with non-HCC (P=0.03). The sensitivity, specificity, PPV, NPV, and accuracy of CEUS in early HCC were 73%, 93.8%, 95.6%, 65.2% and 80.3%, respectively. In CEUS, all of these parameters were much higher than those in B-mode ultrasonography, i.e., 64%, 75%, 82.6%, 52.9%, and 67.9%. It was also found that the diagnostic accuracy of CEUS was much higher than that of B-mode ultrasonography especially regarding lesions <20 mm. To further improve the sensitivity of CEUS in early HCC, AFP was combined with CEUS for the diagnosis of early HCC. As a result, the sensitivity, specificity, PPV, NPV, and accuracy of CEUS combined with AFP level were 83.1%, 87.5%, 92.5%, 73.7%, and 84.7%, respectively. Conclusions Our study confirmed that CEUS' diagnostic accuracy for early HCC in cirrhotic patients was significantly higher than that of B-mode ultrasonography. However, the sensitivity of CEUS needs to be improved further, and the combination of CEUS and AFP level may be a potential solution.
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Affiliation(s)
- Yandong Jiang
- Department of Ultrasound, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Meng Zhang
- Department of Ultrasound, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yanting Zhu
- Department of Ultrasound, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Dongxiao Zhu
- Department of Ultrasound, Affiliated Hospital of Jiangnan University, Wuxi, China
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Zhu Y, You J, Xu C, Gu X. Predictive value of carotid artery ultrasonography for the risk of coronary artery disease. J Clin Ultrasound 2021; 49:218-226. [PMID: 33051899 DOI: 10.1002/jcu.22932] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/12/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
PURPOSE To assess carotid intima-media thickness (IMT), carotid plaques, and cardiovascular risk factors in patients with suspected coronary artery disease (CHD) to determine their association and predictive value for CHD. METHODS We performed duplex Doppler ultrasonography of the carotid arteries and coronary angiography or CT in 480 patients with suspected CHD, and investigated their personal and medical histories. Patients were then assigned to the CHD or the control group depending on the presence of coronary lesions. Ultrasonography was performed the morning after admission prior to any treatment, coronary angiography, or CT. RESULTS Carotid plaques were mainly distributed in the common carotid artery bifurcation, with a significant difference between the CHD and control groups. Plaque incidence (80%) and IMT were significantly higher (P < .001 and P = .012, respectively) in the CHD (80% and 0.84 ± 0.21 mm) than in the control group (49% and 0.76 ± 0.18 mm). The factors significantly associated with CHD were introduced into a multivariate regression model. Male subject (OR = 1.569, 95%CI 1.004-2.453; P = .048) and plaque burden (OR = 0.457, 95%CI 0.210-0.993; P = .048) were significant predictors for CHD occurrence. The presence of carotid plaques performed significantly better than IMT and the Framingham risk score for predicting CHD lesions (P < .001 for both). CONCLUSIONS CHD patients showed higher percentage of clinical (plaques) or subclinical (IMT) carotid artery wall change, and the presence of carotid plaques showed better predictive value than IMT and Framingham risk score for the presence of coronary artery lesions.
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Affiliation(s)
- Ye Zhu
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Department of Cardiology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Jia You
- Department of Internal Medicine, Yangzhou Maternal and Child Health Care Hospital, Yangzhou, Jiangsu, China
| | - Chao Xu
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
| | - Xiang Gu
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Department of Cardiology, Northern Jiangsu People's Hospital, Yangzhou, China
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Sravani N, Ramesh A, Sureshkumar S, Vijayakumar C, Abdulbasith KM, Balasubramanian G, Ch Toi P. Diagnostic role of shear wave elastography for differentiating benign and malignant breast masses. SA J Radiol 2020; 24:1999. [PMID: 33391842 PMCID: PMC7756970 DOI: 10.4102/sajr.v24i1.1999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 10/23/2020] [Indexed: 11/12/2022] Open
Abstract
Background Use of B-mode ultrasound (US) may not obviate the need for diagnosis by histopathology, which is an invasive technique and remains the gold standard. These limitations are being overcome with the advent of shear wave elastography (SWE). Objectives To assess the diagnostic role of SWE parameters and combined SWE and B-mode US in diagnosing malignant breast lesions. Method This cross-sectional study included all patients with a breast mass on clinical examination. A B-mode US with a Breast Imaging Reporting and Data System (BI-RADS) assessment and SWE evaluation (distance ratio [DR], area ratio [AR] and shear wave velocity [SWV]) in the lesion and healthy breast tissue of all recruited patients was performed. Cut-offs for SWE parameters were derived by receiver operating characteristic (ROC) analysis. The diagnostic performance of the B-mode US, the SWE parameters and the combined imaging in diagnosing malignancy was assessed. Results This study included a total of 175 breast masses. The median values of the SWE parameters were significantly higher (p < 0.001) in the malignant breast masses (DR, 1.29 vs. 1.03; AR, 1.69 vs. 1.06; and SWV, 9.1 metre per second [m/s] vs. 2.1 m/s). The ROC cut-off for malignancy was derived at 1.135 m/s, 1.18 m/s and 3.18 m/s, respectively, for DR, AR and SWV. The area under the ROC curve was highest for the DR (0.930), whilst this value was 0.914 and 0.901 for the SWV and AR, respectively. Amongst the respective sensitivities and specificities of the B-mode US (90.6% and 90%), SWE (97.6% and 61.1%), SWE (excluding AR) (96.5% and 77.8%) and combined imaging (100% and 72.2%), the highest sensitivity was noted for the combined method. Conclusion All the SWE parameters were significantly higher in the malignant breast masses, compared to the benign lesions. On combining SWE and B-mode US, there was a significant increase in sensitivity but a decrease in specificity.
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Affiliation(s)
- Nichanametla Sravani
- Department of Radiodiagnosis, Faculty of Health Science, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Ananthakrishnan Ramesh
- Department of Radiodiagnosis, Faculty of Health Science, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Sathasivam Sureshkumar
- Department of Surgery, Faculty of Health Science, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Chellappa Vijayakumar
- Department of Surgery, Faculty of Health Science, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - K M Abdulbasith
- Department of Surgery, Faculty of Health Science, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Gopal Balasubramanian
- Department of Surgery, Faculty of Health Science, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Pampa Ch Toi
- Department of Pathology, Faculty of Health Science, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
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Li LG, Chai JK. [Imaging judgment of soft tissue and vascular injuries in limbs with high-voltage electric burn and its clinical significance]. Zhonghua Shao Shang Za Zhi 2020; 36:1009-1012. [PMID: 33238683 DOI: 10.3760/cma.j.cn501120-20190904-00371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The injury mechanism of high-voltage electric burn in limbs is complex and special. The soft tissue and vascular injuries caused by high-voltage electric burn are serious and concealed. It is difficult to judge the severity and extent of injury before surgery, which affects the diagnosis and treatment effects and remains a major problem in burn field. In recent decades, a series of clinical studies have been conducted by scholars at home and abroad, using various imaging methods for the judgment of soft tissue and vascular injuries, which have their own advantages and disadvantages. According to the principle of accuracy, precision, safety, and easy operation, magnetic resonance imaging and magnetic resonance angiography are required at the same time in general for the imaging judgment of soft tissue and vascular injuries in limbs with high-voltage electric burn. The B-mode ultrasonography shall be performed if a precise judgment of vascular injury is needed.
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Affiliation(s)
- L G Li
- Institute of Burns, the Fourth Medical Center, PLA General Hospital, Beijing 100048, China
| | - J K Chai
- Institute of Burns, the Fourth Medical Center, PLA General Hospital, Beijing 100048, China
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Schulze M, Beyer S, Beyer F, Bortfeldt R, Riesenbeck A, Leiding C, Jung M, Kleve-Feld M. Relationship between pubertal testicular ultrasonographic evaluation and future reproductive performance potential in Piétrain boars. Theriogenology 2020; 158:58-65. [PMID: 32932185 DOI: 10.1016/j.theriogenology.2020.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/31/2020] [Accepted: 09/02/2020] [Indexed: 01/17/2023]
Abstract
New ways of predicting sperm quality and output performance in young artificial insemination (AI) boars are important for breeding companies to ensure that the pubertal boars delivered to the AI studs have a high chance of meeting minimum quality standards to be used for insemination and therewith dissemination of desirable characteristics. The aim of the current study was to characterize the testicular development of 218 pubertal Piétrain boars (Line 408, Pig Improvement Company) to identify traits with predictable characteristics relative to their sperm quality as an adult AI boar. Scrotum, testes and epididymis were examined ultrasonographically at day (d) 100 (on-test) and 170 (off-test) followed by a computer-assisted grayscale analysis (GSA). Over the test period, paired testicular volume increased 7.3-fold from 22.7 ± 10.8 cm3 to 166.6 ± 62.2 cm3. The right testis was significantly (P = 0.014) larger than the left one at the off-test. Based on the sperm quality (ejaculate volume, sperm concentration, total sperm number, morphologically abnormal sperm and total sperm motility at day 3 of semen storage), 82.11% (n = 179) of the boars were classified as "productive" boars. These boars had a significantly (P = 0.039) larger paired testicular volume than "non-productive" boars (45.9 ± 19.9 cm3vs. 38.5 ± 12.6 cm3) at the on-test. For the right testis at on-test, significant differences for the standard deviation of mean gray value (P = 0.022), area under the curve (P = 0.004) and mean gradient value (GRAD, P = 0.030) regarding the future sperm production capacity (SPC) were shown. At off-test, there was a significant difference for minimum gray value (MIN GV, P = 0.003) and mean gray value (P = 0.001) related to SPC. To find SPC related cut-off values for GSA data, a two segmental non-linear regression analysis was carried out indicating breakpoints for GRAD ≥12 and MIN GV ≥ 40 for boars with low SPC. Off-test boars with MIN GV ≥ 40 showed a 2.4 higher risk to display low SPC (Odds ratio = 2.4 [1.1, 5.4]; P = 0.024). The results may enable breeding companies to include new sperm quality associated traits in their boar testing and selection programs.
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Affiliation(s)
- M Schulze
- Institute for Reproduction of Farm Animals Schönow, Bernauer Allee 10, D-16321, Bernau, Germany.
| | - S Beyer
- Institute for Reproduction of Farm Animals Schönow, Bernauer Allee 10, D-16321, Bernau, Germany
| | - F Beyer
- Institute for Reproduction of Farm Animals Schönow, Bernauer Allee 10, D-16321, Bernau, Germany
| | - R Bortfeldt
- Institute for Reproduction of Farm Animals Schönow, Bernauer Allee 10, D-16321, Bernau, Germany
| | - A Riesenbeck
- Genossenschaft Zur Förderung der Schweinehaltung, Zum Pöpping 29, D-59387, Ascheberg, Germany
| | - C Leiding
- Besamungsverein Neustadt a. d. Aisch e. V., Karl-Eibl-Str. 17-27, D-91413, Neustadt a. d. Aisch, Germany
| | - M Jung
- Institute for Reproduction of Farm Animals Schönow, Bernauer Allee 10, D-16321, Bernau, Germany
| | - M Kleve-Feld
- Pig Improvement Company, 100 Bluegrass Commons Blvd. Ste 2200, Hendersonville, TN, 37075, United States
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Ranjkesh M, Hajibonabi F, Seifar F, Tarzamni MK, Moradi B, Khamnian Z. Diagnostic Value of Elastography, Strain Ratio, and Elasticity to B-Mode Ratio and Color Doppler Ultrasonography in Breast Lesions. Int J Gen Med 2020; 13:215-224. [PMID: 32547163 PMCID: PMC7259450 DOI: 10.2147/ijgm.s247980] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 05/11/2020] [Indexed: 12/05/2022] Open
Abstract
Purpose The aim of this study was to investigate the sensitivity, specificity, and diagnostic accuracy of sonoelastography (SE), strain ratio (SR), elasticity to B-mode (E/B) ratio, and color Doppler ultrasonography (US) in suspected breast lesions. Materials and Methods This prospective study was conducted on women referred to Alzahra university hospital of Tabriz for annual screening of breast cancer between May 2017 and December 2018. B-mode US, SE, and color Doppler imaging were conducted in females with suspected mammography reports. The lesions in B-mode were classified according to the Breast Imaging Reporting and Data System (B-RADS). The results of SE imaging were graded based on five-grade SE score. SR and E/B ratio of each lesion were also analyzed in SE images. Color Doppler findings were categorized from 0 (no visible vessel) to 2 (> two vessels) based on the vascularity of the tumor. Pathology results were used as the gold standard to measure the area under the receiver operating characteristic curve (AUC), sensitivity, specificity, and diagnostic accuracy of each modality. Results One-hundred and ten breast lesions of 104 women aged 42.05±10.33 years were included in the study. Seventy-seven of the lesions were benign and 3 were malignant. Sensitivity and specificity of 97.0% and 77.9% for B-mode US, 93.9% and 87.0% for SE score, 81.8% and 66.2% for color Doppler US, 72.7% and 77.6% for E/B ratio (cutoff: 1.05), and 77.3% and 79.6% for SR (cutoff: 1.90) were obtained, respectively. Addition of SE score to B-mode US increased the sensitivity to 93.9%, specificity to 93.5%, and AUC from 0.95 to 0.97. Cumulative color Doppler US with B-mode US did not enhance the diagnostic accuracy of B-mode US. Conclusion SE was more effective than color Doppler US for distinguishing malignant from benign breast lesion. Among the three different SE features, five-grade SE score was superior to E/B ratio and SR.
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Affiliation(s)
- Mahnaz Ranjkesh
- Medical Radiation Sciences Research Group, Tabriz University of Medical Sciences, Tabriz, Iran.,Radiology Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farid Hajibonabi
- Radiology Department, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Seifar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Kazem Tarzamni
- Medical Radiation Sciences Research Group, Tabriz University of Medical Sciences, Tabriz, Iran.,Radiology Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Moradi
- Medical Radiation Sciences Research Group, Tabriz University of Medical Sciences, Tabriz, Iran.,Radiology Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zhila Khamnian
- Social Determinant of Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Piskin FC, Yavuz S, Kose S, Cagli C, Dogruel D, Tumgor G, Aikimbaev K. A comparative study of the pancreas in pediatric patients with cystic fibrosis and healthy children using two-dimensional shear wave elastography. J Ultrasound 2020; 23:535-42. [PMID: 32034705 DOI: 10.1007/s40477-020-00432-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 01/23/2020] [Indexed: 12/17/2022] Open
Abstract
PURPOSE To compare sonographic parameters of the pancreas between healthy children and pediatric cystic fibrosis (CF) patients with pancreatic involvement using shear wave elastography (SWE) and to investigate the efficacy of SWE in the diagnosis of pancreatic involvement in pediatric CF patients. METHODS The pancreas was evaluated in 38 patients with CF and 38 healthy children using conventional B-mode ultrasonography (US) and two-dimensional (2D)-SWE. RESULTS The pancreatic 2D-SWE values of the CF group were significantly lower than those of the healthy control group (1.01 ± 0.16 vs. 1.31 ± 0.01 m/s for the head, 1.03 ± 0.05 vs. 1.28 ± 0.08 m/s for the pancreatic body, and 1.02 ± 0.05 vs. 1.30 ± 0.10 m/s for the tail; p < 0.005 for all the comparisons). When the threshold values were obtained for the pancreatic head, body, and tail segments for the differentiation of the CF patients and healthy controls, the sensitivity of the test was determined as 81.5%, 76.3%, and 73.3%, respectively, and the specificity as 97.3%, 100%, and 100%, respectively. When the patients were divided into two groups based on the presence of B-mode US characteristics (homogeneity, sharp demarcation, and hyperechoic pancreas), there was a significant difference in the 2D-SWE values of the pancreatic head between the patients with and the patients without these characteristics (p = 0.048 for homogeneity, p = 0.021 for sharp demarcation, and p = 0.006 for hyperechoic pancreas). CONCLUSION The measurement of 2D-SWE values was found to be an easily applicable non-invasive test with high sensitivity and specificity for the demonstration of changes in the pancreas of pediatric CF patients.
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Abstract
Background and Objective Thyroid nodules (TNs) are abnormal growths of thyroid cells that form masses within the thyroid gland. TNs are common, and the importance lies in need to exclude thyroid cancer. This study was intended to evaluate the diagnostic accuracy of ultrasonography for differentiating benign from malignant thyroid lesions in comparison with fine-needle aspiration cytology (FNA cytology). Methods This study involved 133 patients with thyroid lesions. All patients underwent thyroid ultrasonography and ultrasound (US)-guided-FNA cytology and results were compared. Results Out of 133 patients included in this study, the mean age was 41.2±15 years, and 113 (85%) were female. Thyroid lesions were benign in 126 cases (94.7%) and malignant in nine cases (5.3%). Among 124 patients with thyroid lesions diagnosed as benign with US, 122 (98.38%) were confirmed to be benign with FNA cytology, and only 2 (1.6%) were proved to be malignant. Among nine patients with thyroid lesions diagnosed as malignant by US, 5 (55.6%) were confirmed to be malignant by FNA cytology, and 4 (44.4%) were proved to be benign. The US diagnosed benign thyroid lesions with a sensitivity, specificity, positive predictive value, and negative predictive value of 98.38%, 71.42%, 98.38%, and 55.55%, respectively. The results revealed strong compatibility between diagnosis of benign thyroid lesions by the US and proved diagnosis by FNA cytology (p<0.001). Conclusion B-mode ultrasonography is a valuable tool in differentiating benign from malignant thyroid lesions. It can almost always predict the benign nature of thyroid lesions with excellent diagnostic accuracy.
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Affiliation(s)
- Sultan Abdulwadoud Alshoabi
- Sultan Abdulwadoud Alshoabi, MBBS, MD, Department of Diagnostic Radiologic Technology, College of Applied Medical Sciences, Taibah University, Almadinah Almunawwarah, Saudi Arabia
| | - Abdulkhaleq Ayedh Binnuhaid
- Abdulkhaleq Ayedh Binnuhaid, MBBS, MD, Department of Specialized Surgery, Radiology Section, Faculty of Medicine, Hadhramout University, Hadhramout, Republic of Yemen
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Kudo M, Ueshima K, Osaki Y, Hirooka M, Imai Y, Aso K, Numata K, Kitano M, Kumada T, Izumi N, Sumino Y, Ogawa C, Akazawa K. B-Mode Ultrasonography versus Contrast-Enhanced Ultrasonography for Surveillance of Hepatocellular Carcinoma: A Prospective Multicenter Randomized Controlled Trial. Liver Cancer 2019; 8:271-280. [PMID: 31602370 PMCID: PMC6738204 DOI: 10.1159/000501082] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Current practice guidelines recommend the use of ultrasound (US) as an initial surveillance tool for hepatocellular carcinoma (HCC) in patients with liver cirrhosis. Patients with liver cirrhosis, however, frequently have coarse liver parenchyma, masking the presence of tiny nodules during B-mode US. Contrast-enhanced US (CEUS) with Sonazoid has a long-lasting, stable Kupffer phase, which makes it possible to scan the entire liver to depict small lesions. In addition, defect reperfusion imaging (reinjection imaging) enables to determine whether the detected nodule is HCC or not. This prospective, multicenter, randomized, controlled trial was conducted to demonstrate the usefulness of Kupffer phase surveillance in the detection of small HCC compared to B-mode US. METHODS A total of 23 institutions joined this study. In total, 656 patients with hepatitis B- or C-related liver cirrhosis were randomized either to the B-mode US surveillance group (n = 313) or the Kupffer phase CEUS with Sonazoid surveillance group (n = 309). The primary endpoint was the maximum size of HCC at the time of the first detection. Secondary endpoints included time to HCC detection, number of tumors, and Barcelona Clinic Liver Cancer stage at the first detection, and sensitivity, specificity, and accuracy of each method in the diagnosis, and the cumulative detection rate of HCC. RESULTS The mean HCC size at the first detection was significantly smaller in the CEUS (13.0 ± 4.1 mm; n = 28) than in the B-mode US group (16.7 ± 4.1 mm; n = 26) (p = 0.011). Of the 38 patients with HCV cirrhosis diagnosed with HCC by US alone, mean tumor size at the first detection was significantly smaller in the 20 patients diagnosed by CEUS alone than in the 18 diagnosed by B-mode US alone (12.7 ± 3.1 vs. 17.6 ± 7.0 mm, p = 0.012). In contrast, among the 16 patients with HBV cirrhosis diagnosed by US alone, mean tumor size at the first detection was similar in the 8 patients diagnosed by CEUS alone and the 8 diagnosed by B-mode US (13.6 ± 6.0 vs. 14.5 ± 2.7 mm, p = 0.715). CONCLUSION Kupffer phase CEUS surveillance with Sonazoid is extremely useful for the early detection and confirmation of HCC using a reinjection technique. Kupffer phase CEUS with Sonazoid contrast combined with the reinjection technique is, therefore, recommended as first-line screening tool for HCC in patients with liver cirrhosis, especially those with very coarse liver parenchyma.
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Affiliation(s)
- Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kindai University School of Medicine, Osaka, Japan,*Masatoshi Kudo, MD, Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, 377-2 Ohnohigashi, Osaka-Sayama, Osaka 589-8511 (Japan), E-Mail
| | - Kazuomi Ueshima
- Department of Gastroenterology and Hepatology, Kindai University School of Medicine, Osaka, Japan
| | - Yukio Osaki
- Department of Gastroenterology and Hepatology, Osaka Red Cross Hospital, Osaka, Japan
| | - Masashi Hirooka
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Yasuharu Imai
- Department of Gastroenterology, Ikeda Municipal Hospital, Osaka, Japan
| | - Kazunobu Aso
- Division of Metabolism and Biosystemic Science, Department of Internal Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Kazushi Numata
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Masayuki Kitano
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Takashi Kumada
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Namiki Izumi
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Yasukiyo Sumino
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Medical Center, Tokyo, Japan
| | - Chikara Ogawa
- Department of Gastroenterology and Hepatology, Takamatsu Red Cross Hospital, Takamatsu, Japan
| | - Kohei Akazawa
- Department of Medical Informatics, Niigata University Medical and Dental Hospital, Niigata City, Japan
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Abe T, Loenneke JP, Thiebaud RS. An Ultrasound Prediction Equation to Estimate DXA-Derived Body Fatness for Middle-Aged and Older Caucasian Adults. J Frailty Aging 2019; 8:79-84. [PMID: 30997920 DOI: 10.14283/jfa.2019.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Currently, only one study has used dual-energy X-ray absorptiometry (DXA)-derived percent body fat (BF%) as the criterion measure to develop ultrasound prediction equations to estimate BF% in adults between the ages of 50 and 80 years. The aim of this study was to examine the relationship between BF% estimated from subcutaneous fat thickness using a previously published Japanese-based prediction equation and DXA-derived BF% in Caucasian middle-aged and older adults. A secondary aim was to develop a new prediction equation for Caucasian adults if the previously published equation did not predict BF% well in Caucasians. DESIGN Cross-sectional study. PARTICIPANTS AND MEASUREMENTS One-hundred and two Caucasian adults aged 50-76 years (59 men and 43 women) had ultrasound fat thickness and DXA values measured. A new BF% prediction model was developed using ordinary least squares multiple linear regression. RESULTS There was a strong correlation between ultrasound predicted and DXA-derived BF% (r = 0.882, p<0.001). Bland-Altman analysis did not indicate a bias in the prediction of BF% for Caucasian adults (r = -0.092, p>0.05). However, the predicted BF% was significantly higher compared to DXA-derived BF% (approximately 4%). A newly developed nonlinear prediction model used to estimate BF% was significant [F(17,84) = 33.44, p<0.001] with an R2 of 0.871 and an adjusted R2 of 0.845. When examining the stability of the model, bootstrapping (n=1000) resulted in an optimism value of 0.1135 so that the corrected R2 was 0.758. After removing an outlier, the model was significant [F(17,83) = 34.82, p<0.001] and it's R2 was 0.877 and adjusted R2 was 0.852. CONCLUSION The developed equation was stable with a high degree of variance compared to results from previous studies. The results of this study also suggest that ethnicity should be considered when choosing which prediction equations should be used to estimate BF%.
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Affiliation(s)
- T Abe
- Takashi Abe, PhD, 224 Turner Center, University, MS 38677, USA, Phone: +1 (662) 915-5521, Fax: +1 (662) 915-5525,
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15
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Hachem K, Njeim M, Abou Diwan R. Longitudinal pulsatility in arterial occlusion. J Clin Ultrasound 2018; 46:483-486. [PMID: 30306598 DOI: 10.1002/jcu.22628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/25/2018] [Accepted: 06/24/2018] [Indexed: 06/08/2023]
Abstract
This pictorial essay aims to generate attention and inform sonographers and clinicians by remembering the "longitudinal pulsatility" as an evocative B-mode echographic sign of arterial occlusion, when the artery exhibits a systolic axial motion instead of its normal radial pulsatility.
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Affiliation(s)
- Kamal Hachem
- Medical Imaging Department, Hôtel-Dieu de France, Beirut, Lebanon
| | - Mario Njeim
- Cardiology Department, Hôtel-Dieu de France, Beirut, Lebanon
| | - Ralph Abou Diwan
- Medical Imaging Department, Hôtel-Dieu de France, Beirut, Lebanon
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Liu T, Ge X, Yu J, Guo Y, Wang Y, Wang W, Cui L. Comparison of the application of B-mode and strain elastography ultrasound in the estimation of lymph node metastasis of papillary thyroid carcinoma based on a radiomics approach. Int J Comput Assist Radiol Surg 2018; 13:1617-1627. [PMID: 29931410 DOI: 10.1007/s11548-018-1796-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/17/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE B-mode ultrasound (B-US) and strain elastography ultrasound (SE-US) images have a potential to distinguish thyroid tumor with different lymph node (LN) status. The purpose of our study is to investigate whether the application of multi-modality images including B-US and SE-US can improve the discriminability of thyroid tumor with LN metastasis based on a radiomics approach. METHODS Ultrasound (US) images including B-US and SE-US images of 75 papillary thyroid carcinoma (PTC) cases were retrospectively collected. A radiomics approach was developed in this study to estimate LNs status of PTC patients. The approach included image segmentation, quantitative feature extraction, feature selection and classification. Three feature sets were extracted from B-US, SE-US, and multi-modality containing B-US and SE-US. They were used to evaluate the contribution of different modalities. A total of 684 radiomics features have been extracted in our study. We used sparse representation coefficient-based feature selection method with 10-bootstrap to reduce the dimension of feature sets. Support vector machine with leave-one-out cross-validation was used to build the model for estimating LN status. RESULTS Using features extracted from both B-US and SE-US, the radiomics-based model produced an area under the receiver operating characteristic curve (AUC) [Formula: see text] 0.90, accuracy (ACC) [Formula: see text] 0.85, sensitivity (SENS) [Formula: see text] 0.77 and specificity (SPEC) [Formula: see text] 0.88, which was better than using features extracted from B-US or SE-US separately. CONCLUSIONS Multi-modality images provided more information in radiomics study. Combining use of B-US and SE-US could improve the LN metastasis estimation accuracy for PTC patients.
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Affiliation(s)
- Tongtong Liu
- Department of Electronic Engineering, Fudan University, Shanghai, 200433, China
- Key Laboratory of Medical Imaging, Computing and Computer-Assisted Intervention, Shanghai, 200433, China
| | - Xifeng Ge
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Jinhua Yu
- Department of Electronic Engineering, Fudan University, Shanghai, 200433, China.
- Key Laboratory of Medical Imaging, Computing and Computer-Assisted Intervention, Shanghai, 200433, China.
| | - Yi Guo
- Department of Electronic Engineering, Fudan University, Shanghai, 200433, China
- Key Laboratory of Medical Imaging, Computing and Computer-Assisted Intervention, Shanghai, 200433, China
| | - Yuanyuan Wang
- Department of Electronic Engineering, Fudan University, Shanghai, 200433, China
- Key Laboratory of Medical Imaging, Computing and Computer-Assisted Intervention, Shanghai, 200433, China
| | - Wenping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, 20032, China
| | - Ligang Cui
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China.
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Abstract
A number of noninvasive tests exist for assessing cardiovascular structure and function. This chapter describes protocols for flow-mediated dilation (FMD) of the brachial artery and pulse wave velocity (PWV) and pulse wave analysis (PWA) for measurement of arterial stiffness. The chapter also describes the different methodological approaches involved in applying these techniques for optimizing their validity, comparability, and potential uses as clinical and physiological research tools.
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Affiliation(s)
- Marjan Mosalman Haghighi
- Exercise Health and Performance Faculty Research Group, Faculty of Health Sciences, University of Sydney, Camperdown, NSW, Australia.
| | - Julian Ayer
- The Heart Centre for Children, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
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Toda Y, Kimura T, Taki C, Kurihara T, Homma T, Hamaoka T, Sanada K. New ultrasonography-based method for predicting total skeletal muscle mass in male athletes. J Phys Ther Sci 2016; 28:1556-9. [PMID: 27313370 PMCID: PMC4905909 DOI: 10.1589/jpts.28.1556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/02/2016] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This study aimed 1) to assess whether a prediction model for whole body
skeletal muscle mass that is based on a sedentary population is applicable to young male
athletes, and 2) to develop a new skeletal muscle mass prediction model for young male
athletes. [Subjects and Methods] The skeletal muscle mass of 61 male athletes was measured
using magnetic resonance imaging (MRI) and estimated using a previous prediction model
(Sanada et al., 2006) with B-mode ultrasonography. The prediction model was not suitable
for young male athletes, as a significant difference was observed between the means of the
estimated and MRI-measured skeletal muscle mass. Next, the same subjects were randomly
assigned to a development or validation group, and a new model specifically relevant to
young male athletes was developed based on MRI and ultrasound data obtained from the
development group. [Results] A strong correlation was observed between the skeletal muscle
mass estimated by the new model and the MRI-measured skeletal muscle mass (r=0.96) in the
validation group, without significant difference between their means. No bias was found in
the new model using Bland-Altman analysis (r=−0.25). [Conclusion] These results validate
the new model and suggest that ultrasonography is a reliable method for measuring skeletal
muscle mass in young male athletes.
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Affiliation(s)
- Yoko Toda
- Faculty of Food Science and Nutrition, Mukogawa Women's University, Japan
| | - Tetsuya Kimura
- Graduate School of Human Development and Environment, Kobe University, Japan
| | - Chinami Taki
- Graduate School of Human Development and Environment, Kobe University, Japan
| | - Toshiyuki Kurihara
- Graduate School of Sport and Health Science, Ritsumeikan University, Japan
| | - Toshiyuki Homma
- Department of Sports Science, Faculty of Sports and Health Science, Daito Bunka University, Japan
| | - Takafumi Hamaoka
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Japan
| | - Kiyoshi Sanada
- Graduate School of Sport and Health Science, Ritsumeikan University, Japan
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Chino K, Takahashi H. The association of muscle and tendon elasticity with passive joint stiffness: In vivo measurements using ultrasound shear wave elastography. Clin Biomech (Bristol, Avon) 2015; 30:1230-5. [PMID: 26296832 DOI: 10.1016/j.clinbiomech.2015.07.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 07/22/2015] [Accepted: 07/31/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Passive joint stiffness is associated with various tissues, including muscles, tendons, ligaments, and joint capsules. The specific elasticity of muscles or tendons can be measured using ultrasound shear wave elastography. To examine the association of muscle and tendon elasticity with passive joint stiffness, in vivo measurements of muscle and tendon elasticity were performed using ultrasound shear wave elastography. METHODS In 25 subjects, passive ankle joint stiffness was determined using the joint angle-passive torque relationship. The stiffness index of the muscle belly of the medial gastrocnemius (MG)--influenced by the muscle fascicles, its aponeuroses, and the proximal tendon--was quantified by the displacement of the muscle-tendon junction, which was visualized using B-mode ultrasonography during passive dorsiflexion. The stiffness index of the Achilles tendon--influenced by the tendon and the ligaments and joint capsule of the ankle--was similarly determined. The MG and Achilles tendon elasticity was measured using ultrasound shear wave elastography. FINDINGS Simple regression indicated a significant correlation between passive joint stiffness and stiffness index of the MG muscle belly (r=0.80) and Achilles tendon (r=0.60), but no correlation with elasticity of the MG (r=-0.37) or Achilles tendon (r=-0.39). INTERPRETATION Individual variations in the elasticity of either the MG or Achilles tendon are not associated with variations in passive ankle joint stiffness; however, variations in the elasticity of other tissues, including MG aponeuroses or the ligaments and joint capsule of the ankle, would be associated with the variations in joint stiffness.
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Affiliation(s)
- Kentaro Chino
- Department of Sports Science, Japan Institute of Sports Sciences, 3-15-1 Nishigaoka, Kita-ku, Tokyo 115-0056, Japan.
| | - Hideyuki Takahashi
- Department of Sports Science, Japan Institute of Sports Sciences, 3-15-1 Nishigaoka, Kita-ku, Tokyo 115-0056, Japan
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Abe T, Thiebaud RS, Loenneke JP, Young KC. Prediction and validation of DXA-derived appendicular lean soft tissue mass by ultrasound in older adults. Age (Dordr) 2015; 37:114. [PMID: 26552906 PMCID: PMC5005856 DOI: 10.1007/s11357-015-9853-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 10/28/2015] [Indexed: 05/23/2023]
Abstract
The purpose of this study was to develop regression-based prediction equations for estimating dual-energy X-ray absorptiometry (DXA)-derived appendicular lean soft tissue mass (aLM) using ultrasound and to investigate the validity of these equations in 102 Caucasian adults aged 50 to 76 years. The subjects were randomly separated into two groups: 71 in the model-development group (41 men and 30 women) and 31 in the cross-validation group (18 men and 13 women). aLM was measured using a DXA, and muscle thickness (MT) was measured using ultrasound at 9 sites. Stepwise linear regression analysis was used to determine predictive models for DXA-derived aLM from MT variables, sex, and age. A number of ultrasound prediction equations for estimation of aLM were developed and then cross-validated in a subsample of older adults. The results indicated that ultrasound MT and MT × height can be used to accurately and reliably estimate DXA-derived aLM in older Caucasian adults.
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Affiliation(s)
- Takashi Abe
- Department of Sports and Life Sciences, National Institute of Fitness and Sports in Kanoya, 1 Shiromizu-cho, Kanoya-shi, Kagoshima, 891-2393, Japan.
- Department of Health, Exercise Science, and Recreation Management, School of Applied Sciences, The University of Mississippi, Oxford, MS, USA.
| | - Robert S Thiebaud
- Department of Kinesiology, Texas Wesleyan University, Fort Worth, TX, USA
| | - Jeremy P Loenneke
- Department of Health, Exercise Science, and Recreation Management, School of Applied Sciences, The University of Mississippi, Oxford, MS, USA
| | - Kaelin C Young
- Department of Cell Biology and Physiology, Edward Via College of Osteopathic Medicine-Auburn Campus, Auburn, AL, USA
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Yang Y, Ye LY, Yu B, Guo JX, Liu Q, Chen Y. Two case reports of bilateral adrenal myelolipomas. World J Clin Cases 2015; 3:853-860. [PMID: 26380835 PMCID: PMC4568537 DOI: 10.12998/wjcc.v3.i9.853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 05/30/2015] [Accepted: 07/02/2015] [Indexed: 02/05/2023] Open
Abstract
Primary adrenal myelolipoma is a rare, non-functioning adrenal benign tumor that is composed of mature adipose tissue and a variable amount of haemopoietic elements. Clinically, it is difficult to get diagnosed with adrenal myelolipoma because the patient usually doesn’t have obvious symptoms and signs in early stage. In the present study, two cases of primary bilateral adrenal myelolipomas are reported. Clinical presentation, imaging diagnostic features, histopathological changes and surgical treatments of the two patients are discussed. Preoperative diagnostic imaging examinations (B-mode ultrasonography, computed tomography and magnetic resonance imaging sans) assisted getting a prediction diagnosis of bilateral adrenal myelolipomas. A two-stage surgery was used to successfully excise bilateral adrenal myelolipomas in the two patients. Conventional open adrenalectomy was applied to remove the adrenal myelolipomas greater than 6 cm, and laparoscopic adrenalectomy was performed to excise the adrenal tumors smaller than 6 cm. Bilateral adrenal myelolipomas of the two patients were finally confirmed by postoperative histopathological examinations. Understanding clinical, imaging diagnostic and histopathological features of bilateral adrenal myelolipomas will facilitate timely diagnosis and treatment of this condition. Surgical removal of bilateral adrenal myelolipomas is safe, curative and beneficial. The two-stage surgery appears to be the best treatment option for the patients with bilateral adrenal myelolipomas because it achieves optimal treatment effectiveness with minimized sequelae.
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Mishima M, Toh U, Iwakuma N, Takenaka M, Furukawa M, Akagi Y. Evaluation of contrast Sonazoid-enhanced ultrasonography for the detection of hepatic metastases in breast cancer. Breast Cancer 2014; 23:231-41. [PMID: 25143060 PMCID: PMC4773471 DOI: 10.1007/s12282-014-0560-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 08/07/2014] [Indexed: 12/12/2022]
Abstract
Background The present study was aimed to evaluate the usefulness of contrast Sonazoid-enhanced ultrasonography (US) for the detection of hepatic metastases in breast cancer patients and compare the clinical efficacy and sensitivity of this technique with conventional contrast unenhanced B-mode US in follow-up examinations of breast cancer patients with liver metastasis. Methods We assessed a total of 84 hepatic tumors from 24 patients diagnosed with or suspected of having metastatic cancer. These hepatic nodules were diagnosed through imaging, including dynamic magnetic resonance imaging (MRI), contrast-enhanced computed tomography (CECT) scan, B-mode US or contrast Sonazoid-enhanced US (SEUS). Differences in the sensitivity between US and SEUS were compared using MR imaging, CECT, and follow-up imaging. Results A total of 79 nodules were diagnosed as metastatic tumors. The remaining nodules were diagnosed as benign tumors (hepatic hemangioma: n = 3; local fatty change: n = 2). SEUS precisely detected the presence or absence of hepatic tumors in the 24 patients examined, showing a sensitivity of 98.8 % (83 of 84 lesions) for total imaged solid liver lesions, with an accuracy of 98.7 % (78 of 79 lesions) for total metastatic breast cancer lesions. In contrast, conventional B-mode US imaging revealed hepatic tumor lesions at a sensitivity of 66.7 % (56 of 84 lesions) and an accuracy of 64.6 % (51 of 79 lesions), respectively. Furthermore, the false positive and false negative rates were, respectively, 6.33 and 29.1 % for B-mode US and 0 and 1.3 % for SEUS. Moreover, twenty-seven metastatic tumors and five benign lesions (3 hemangiomas and 2 focal fatty changes/sparings) were imaged using SEUS but not conventional B-mode US. Significant differences in diagnostic accuracy rates between contrast Sonazoid-enhanced US and conventional B-mode US were observed (Wilcoxon signed rank test: p = 0.0009). No severe adverse events occurred during SEUS after the administration of Sonazoid, except for a grade 1 skin reaction and nausea in one patient. Conclusion These results suggested that Sonazoid could be safely administrated to breast cancer patients with liver metastatic disease. Thus, contrast Sonazoid-enhanced US is a feasible and more effective method than B-mode US for the detection of hepatic metastasis, particularly for small metastatic breast cancer lesions less than 14 mm in diameter, showing significant high sensitivity and accuracy.
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Affiliation(s)
- Mai Mishima
- Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, 830-0011, Kurume, Fukuoka, Japan
| | - Uhi Toh
- Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, 830-0011, Kurume, Fukuoka, Japan.
| | - Nobutaka Iwakuma
- Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, 830-0011, Kurume, Fukuoka, Japan
| | - Miki Takenaka
- Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, 830-0011, Kurume, Fukuoka, Japan
| | - Mina Furukawa
- Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, 830-0011, Kurume, Fukuoka, Japan
| | - Yoshito Akagi
- Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, 830-0011, Kurume, Fukuoka, Japan
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Harmon L, Boccalandro F. Comparison of carotid artery dimensions and lesion length measured by B-mode ultrasonography and quantitative angiography in patients with severe stenosis undergoing percutaneous revascularization. J Clin Ultrasound 2014; 42:270-276. [PMID: 24449254 DOI: 10.1002/jcu.22132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Revised: 10/20/2013] [Accepted: 12/16/2013] [Indexed: 06/03/2023]
Abstract
BACKGROUND To evaluate the correlation and agreement of the carotid artery landmarks necessary for carotid artery stenting obtained by B-mode ultrasonography (BMU), and by quantitative angiography (QCA) in patients with severe carotid artery stenosis. METHODS In 75 patients undergoing carotid artery stenting, the distal common (CCA), proximal internal (ICA) carotid artery diameter, and lesion length were measured preoperatively by BMU, and intraoperatively by QCA. RESULTS In 96% of the subjects, BMU imaging was adequate for interpretation. BMU and QCA Pearson correlation and Lin concordance coefficients were 0.75 (p < 0.001) and 0.959 (95% CI: 0.930 - 0.996), respectively, for CCA diameter, 0.88 (p < 0.001) and 0.954 (95% CI: 0.928-0.983), respectively, for ICA diameter, and 0.62 (p < 0.001) and 0.734 (95% CI: 0.719-0.760), respectively, for lesion length, with a 0.765 bias correction factor and a wider data scatter by Bland Altman plots showing shorter lesion length by BMU than by QCA. CONCLUSIONS In patients with carotid artery stenosis, BMU can provide reliable distal CCA and proximal ICA diameters in comparison with QCA, whereas lesion length measured by BMU has an acceptable correlation, but a poor agreement with QCA.
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Affiliation(s)
- Laura Harmon
- Scott and White Memorial Hospital and Clinic, Department of Surgery, Temple, TX
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24
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Abstract
BACKGROUND Diabetes mellitus is associated with high cardiovascular risk. Carotid intima media thickness (CIMT) is used commonly as a noninvasive test for the assessment of degree of atherosclerosis. The objective of this study was to find out the cut-off point for CIMT for ischemic stroke in patients with type 2 diabetes mellitus (T2DM) and to correlate CIMT with various parameters like smoking, hypertension, lipid profile and duration of T2DM. MATERIALS AND METHODS A total of 80 subjects in the age group of 30-75 years (M:F = 57:23) were selected and divided into three groups, i.e. diabetes with ischemic stroke, diabetes and healthy subjects. All the participants were subjected to B-mode ultrasonography of both common carotid arteries to determine CIMT, along with history taking, physical examination and routine laboratory investigations including included fasting and 2-hour postprandial blood sugar, blood urea, serum creatinine, lipid profile, glycated hemoglobin, and microalbuminuria. RESULTS Patients with T2DM with or without ischemic stroke were found to have significantly higher prevalence of increased CIMT and a value greater than 0.8 mm was found to be associated with the occurrence of stroke. The mean carotid IMT of the group as a whole was 0.840 ± 0.2 mm. The mean carotid IMT was not significantly different between T2DM patients with or without ischemic stroke (1.06 ± 0.2 vs. 0.97 ± 0.26 mm, P = 0.08). However, the mean CIMT was significantly higher in diabetic subjects compared to healthy subjects (1.01 ± 0.28 mm vs. 0.73 ± 0.08, P = 0.006). Other parameters like higher age, smoking, hypertension, hyperlipidemia, low HDL cholesterol, the glycemic parameters and the duration of diabetes were independently and significantly related to CIMT. CONCLUSION A high CIMT is a surrogate and reliable marker of higher risk of ischemic stroke amongst type 2 diabetic patients. Our study demonstrates the utility of carotid IMT as a simple non-invasive screening test for the assessment of atherosclerosis risk/prognosis in type 2 diabetics.
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Affiliation(s)
- Sunil Kumar Kota
- Department of Endocrinology, Medwin Hospitals, Hyderabad, Andhra Pradesh, India
| | | | - Siva Krishna Kota
- Department of Anesthesia, Central Security Hospital, Riyadh, Saudi Arabia
| | - Syed Naveed
- Department of Medicine, Medwin Hospitals, Hyderabad, Andhra Pradesh, India
| | | | - Sruti Jammula
- Department of Pharmaceutics, Roland Institute of Pharmaceutical Sciences, Berhampur, Orissa, India
| | - Kirtikumar D. Modi
- Department of Endocrinology, Medwin Hospitals, Hyderabad, Andhra Pradesh, India
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Abstract
Since its introduction in clinical practice, ultrasound technology has greatly impacted patient management, particularly in the case of liver diseases, where hepatologists usually perform ultrasound examinations. Clinicians are increasingly aware of the great potential of ultrasound waves and of the recent innovations that exploit the mechanical properties of ultrasound waves. Thus, at present, not only B-mode ultrasound but also contrast-enhanced ultrasound and, more recently, elastosonography are used worldwide in various settings. This review aims to describe why clinicians should be aware of ultrasound-based techniques, how they should use these techniques for assessing focal liver lesions, and how these techniques impact patient management. We will review the clinical potential of ultrasound-related techniques, starting from lesion detection, moving to characterization, and concluding with their utility in guiding treatments and analyzing their effects.
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Affiliation(s)
| | - Luigi Bolondi
- *Luigi Bolondi, MD, Division of Internal Medicine, Policlinico S.Orsola-Malpighi, Alma Mater Studiorum-University of Bologna, Via Albertoni 15, Bologna 40138 (Italy), Tel. +39 051636 2260, E-Mail
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Kajioka T, Shimokata H, Sato Y. The effect of daily walking on body fat distribution. Environ Health Prev Med 2000; 5:85-9. [PMID: 21432190 DOI: 10.1265/ehpm.2000.85] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/1999] [Accepted: 05/21/2000] [Indexed: 12/23/2022] Open
Abstract
The effect of daily walking on body fat distribution was investigated using an electronic pedometer and ultrasonography. Subjects were 77 women, aged 31 to 72 years. They were divided into four groups according to the average number of steps they walked per day (I<7,500, 7,500 ≤II<10,000, 10,000 <III<12,500, 12,500 ≤IV). Subcutaneous fat in the trunk and limbs, and the minimum thickness of subcutaneous fat (Smin) and the maximum thickness of preperitoneal fat (Pmax) below the xiphoid process were measured by ultrasonography. Abdominal wall fat index (AFI) reflecting the intra-abdominal fat accumulation was obtained by dividing Pmax by Smin. Fat distribution was analyzed by ANCOVA, controlled for age, body mass index (BMI), percent body fat, and menopausal status. Energy and macronutrient intake were obtained through a nutritional survey. There were no significant differences in anthropometric variables, energy and macronutrient intake, and subcutaneous fat thickness in trunk and limbs. Pmax of Group I was significantly higher than Group IV. Furthermore, Group I showed significantly higher AFI than the other three Groups (II, III, IV). The results of this study suggested that women who walked less than 7,500 steps per day tend to have significantly increased intra-abdominal fat accumulation.
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Affiliation(s)
- T Kajioka
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Furo-cho, Chikusa-ku, 464-8601, Nagoya, Aichi, Japan
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