Chang Haur Lee, Yazid Pol Ong, F. Hayati, M. Z. A. Muien, S. Z. Sharif
Thyroid hemiagenesis (THA) is a rare congenital abnormality in which one of the thyroid lobes fails to develop normally. The prevalence rates range from 0.02% to 0.25%, with no gender preponderance and most commonly involve the left lobe. We report a case of left THA in a 37-year-old female that was found incidentally during total thyroidectomy for right papillary thyroid carcinoma. Most patients with THA are asymptomatic, however, may have subclinically raised thyroid-stimulating hormone levels or be predisposed to developing thyroid disorders such as nodular goiter, hyperthyroidism, Grave’s disease, Hashimoto’s thyroiditis, hyperparathyroidism, or malignancy. Usual imaging techniques such as ultrasonography, computed tomography, and magnetic resonance imaging allow the confirmation of diagnosis and provide clearer glandular and regional visualization. Additional modalities such as thyroid scintigraphy enable the functional assessment and identification of any suspicious nodules and aid in decision-making. THA is a very uncommon condition and the diagnosis is primarily made through imaging. Clinicians should be aware that this condition exists along with documented associations of concomitant thyroid disorders and malignancy.
{"title":"Thyroid Hemiagenesis: An Incidental Discovery during Treatment for Papillary Thyroid Carcinoma","authors":"Chang Haur Lee, Yazid Pol Ong, F. Hayati, M. Z. A. Muien, S. Z. Sharif","doi":"10.4103/jmu.jmu_32_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_32_23","url":null,"abstract":"\u0000 Thyroid hemiagenesis (THA) is a rare congenital abnormality in which one of the thyroid lobes fails to develop normally. The prevalence rates range from 0.02% to 0.25%, with no gender preponderance and most commonly involve the left lobe. We report a case of left THA in a 37-year-old female that was found incidentally during total thyroidectomy for right papillary thyroid carcinoma. Most patients with THA are asymptomatic, however, may have subclinically raised thyroid-stimulating hormone levels or be predisposed to developing thyroid disorders such as nodular goiter, hyperthyroidism, Grave’s disease, Hashimoto’s thyroiditis, hyperparathyroidism, or malignancy. Usual imaging techniques such as ultrasonography, computed tomography, and magnetic resonance imaging allow the confirmation of diagnosis and provide clearer glandular and regional visualization. Additional modalities such as thyroid scintigraphy enable the functional assessment and identification of any suspicious nodules and aid in decision-making. THA is a very uncommon condition and the diagnosis is primarily made through imaging. Clinicians should be aware that this condition exists along with documented associations of concomitant thyroid disorders and malignancy.","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140485312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Parames Seevaleephan, T. Treesit, Chinnarat Bua-ngam, S. Feinggumloon, Apichaya Sriprachyakul, Kaewpitcha Pichitpichatkul, Tanapong Panpikoon
The objective is to study the relation between the velocity of the arterial feeder and the progression of the postendovascular aneurysm repair aneurysm to find out the cut point velocity, which causes a significant increase in size of the aneurysm sac. Retrospective study of patients with Type II endoleak followed up with the duplex ultrasound between January 2010 and June 2022. The sensitivity, specificity, and accuracy of the velocity, number of feeding artery, and flow pattern were studied. Receiver operating characteristic analysis was performed to evaluate a test performance and the most appropriate cutoff velocity of the arterial feeder. The peak systolic velocity (PSV) of >75 cm/s, multiple feeding arteries, and the to-and-fro pattern show a significant distinguish the stable size from the significant increase in the size of the aneurysm with a sensitivity of 100.0%, a specificity of 100.0%, and an accuracy of 100.0% (P = 0.002). The patient with a PSV >75 cm/s, multiple feeding arteries, and the to-and-fro pattern are correlated with significant aneurysm expansion and need closer follow-up than the patient with low PSV, single feeding artery, and monophasic pattern.
{"title":"Feeding Flow Velocity on Doppler Ultrasound Predicting the Outcome of Type II Endoleak following Endovascular Aneurysm Repair of Abdominal Aortic Aneurysm","authors":"Parames Seevaleephan, T. Treesit, Chinnarat Bua-ngam, S. Feinggumloon, Apichaya Sriprachyakul, Kaewpitcha Pichitpichatkul, Tanapong Panpikoon","doi":"10.4103/jmu.jmu_82_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_82_23","url":null,"abstract":"\u0000 \u0000 \u0000 The objective is to study the relation between the velocity of the arterial feeder and the progression of the postendovascular aneurysm repair aneurysm to find out the cut point velocity, which causes a significant increase in size of the aneurysm sac.\u0000 \u0000 \u0000 \u0000 Retrospective study of patients with Type II endoleak followed up with the duplex ultrasound between January 2010 and June 2022. The sensitivity, specificity, and accuracy of the velocity, number of feeding artery, and flow pattern were studied. Receiver operating characteristic analysis was performed to evaluate a test performance and the most appropriate cutoff velocity of the arterial feeder.\u0000 \u0000 \u0000 \u0000 The peak systolic velocity (PSV) of >75 cm/s, multiple feeding arteries, and the to-and-fro pattern show a significant distinguish the stable size from the significant increase in the size of the aneurysm with a sensitivity of 100.0%, a specificity of 100.0%, and an accuracy of 100.0% (P = 0.002).\u0000 \u0000 \u0000 \u0000 The patient with a PSV >75 cm/s, multiple feeding arteries, and the to-and-fro pattern are correlated with significant aneurysm expansion and need closer follow-up than the patient with low PSV, single feeding artery, and monophasic pattern.\u0000","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140484539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Minoru Kobayashi, M. Yokoyama, Hideo Yuki, Takao Kamai
Recent advances in imaging methods increased the incidental detection of small renal angiomyolipoma (AML). However, guidelines for managing small AML are lacking, and decisions about imaging frequency and timing of intervention are made on an individual basis. This study aims to investigate the clinical behavior of small sporadic AML and propose an optimal follow-up strategy. The study is a retrospective analysis of 168 individuals who had hyperechoic lesions, suggestive of AML detected during abdominal ultrasound as a part of their health checkup. The clinical information of the individuals, including tumor characteristics and renal function, was reviewed. Statistical analysis was performed to identify factors associated with tumor growth and renal function. Most AMLs were small (≤20 mm) and did not exhibit malignant characteristics. The tumors showed a slow growth rate, with a mean growth rate of 0.24 mm/year. Only a small proportion of cases (1.2%) required intervention due to significant enlargement. Factors such as tumor size and gender were not significantly associated with tumor growth rate or renal function. However, younger patients showed a higher tumor growth rate and a more pronounced decline in renal function. Small sporadic AMLs have a slow growth rate and little risk of malignancy. Neither tumor size nor gender was predictive factors for tumor growth or renal function. Nevertheless, close monitoring of tumor growth and renal function is advised, particularly in younger patients. This study highlights the need for further research and guidelines to establish an optimal surveillance protocol for small AMLs.
{"title":"Natural History and Management of Ultrasound-detected Small Renal Angiomyolipoma","authors":"Minoru Kobayashi, M. Yokoyama, Hideo Yuki, Takao Kamai","doi":"10.4103/jmu.jmu_73_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_73_23","url":null,"abstract":"\u0000 \u0000 \u0000 Recent advances in imaging methods increased the incidental detection of small renal angiomyolipoma (AML). However, guidelines for managing small AML are lacking, and decisions about imaging frequency and timing of intervention are made on an individual basis. This study aims to investigate the clinical behavior of small sporadic AML and propose an optimal follow-up strategy.\u0000 \u0000 \u0000 \u0000 The study is a retrospective analysis of 168 individuals who had hyperechoic lesions, suggestive of AML detected during abdominal ultrasound as a part of their health checkup. The clinical information of the individuals, including tumor characteristics and renal function, was reviewed. Statistical analysis was performed to identify factors associated with tumor growth and renal function.\u0000 \u0000 \u0000 \u0000 Most AMLs were small (≤20 mm) and did not exhibit malignant characteristics. The tumors showed a slow growth rate, with a mean growth rate of 0.24 mm/year. Only a small proportion of cases (1.2%) required intervention due to significant enlargement. Factors such as tumor size and gender were not significantly associated with tumor growth rate or renal function. However, younger patients showed a higher tumor growth rate and a more pronounced decline in renal function.\u0000 \u0000 \u0000 \u0000 Small sporadic AMLs have a slow growth rate and little risk of malignancy. Neither tumor size nor gender was predictive factors for tumor growth or renal function. Nevertheless, close monitoring of tumor growth and renal function is advised, particularly in younger patients. This study highlights the need for further research and guidelines to establish an optimal surveillance protocol for small AMLs.\u0000","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139627662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wen-Chin Lee, Ben-Chung Cheng, Chien-Te Lee, S. Liao
With an estimated prevalence of 1 in 1000 individuals globally, autosomal dominant polycystic kidney disease (ADPKD) stands as the most prevalent inherited renal disorder. Ultrasonography (US) is the most widely used imaging modality in the diagnosis and monitoring of ADPKD. This review discusses the role of US in the evaluation of ADPKD, including its diagnostic accuracy, limitations, and recent advances. An overview of the pathophysiology and clinical manifestations of ADPKD has also been provided. Furthermore, the potential of US as a noninvasive tool for the assessment of disease progression and treatment response is examined. Overall, US remains an essential tool for the management of ADPKD, and ongoing research efforts are aimed at improving its diagnostic and prognostic capabilities.
常染色体显性多囊肾病（ADPKD）的发病率估计为全球千分之一，是最常见的遗传性肾脏疾病。超声波检查（US）是诊断和监测 ADPKD 最广泛使用的成像方式。本综述将讨论 US 在 ADPKD 评估中的作用，包括其诊断准确性、局限性和最新进展。文章还概述了 ADPKD 的病理生理学和临床表现。此外，还探讨了 US 作为评估疾病进展和治疗反应的无创工具的潜力。总之，US 仍然是治疗 ADPKD 的重要工具，目前的研究工作旨在提高其诊断和预后能力。
{"title":"Update on the Application of Ultrasonography in Understanding Autosomal Dominant Polycystic Kidney Disease","authors":"Wen-Chin Lee, Ben-Chung Cheng, Chien-Te Lee, S. Liao","doi":"10.4103/jmu.jmu_77_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_77_23","url":null,"abstract":"\u0000 With an estimated prevalence of 1 in 1000 individuals globally, autosomal dominant polycystic kidney disease (ADPKD) stands as the most prevalent inherited renal disorder. Ultrasonography (US) is the most widely used imaging modality in the diagnosis and monitoring of ADPKD. This review discusses the role of US in the evaluation of ADPKD, including its diagnostic accuracy, limitations, and recent advances. An overview of the pathophysiology and clinical manifestations of ADPKD has also been provided. Furthermore, the potential of US as a noninvasive tool for the assessment of disease progression and treatment response is examined. Overall, US remains an essential tool for the management of ADPKD, and ongoing research efforts are aimed at improving its diagnostic and prognostic capabilities.","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139440018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Prenatal diagnosis of myelomeningocele remains challenging for obstetricians, ultrasonographers, and radiologists, although the increased maternal serum alpha-fetoprotein level aids in the confirmative diagnosis. Fetal cervical myelomeningocele and meningocele are very rare and unique types of myelomeningocele. Prenatal diagnosis of cervical myelomeningocele and meningocele should include the differential diagnosis and association of many intracranial and spino-skeletal pathogenetic variants and genetic diseases, including subependymal nodular heterotopia and Klippel–Feil syndrome. In this report, a comprehensive review of fetal cervical myelomeningocele with its prenatal diagnosis and long-term outcomes is presented.
{"title":"Prenatal Diagnosis and Outcomes of Cervical Meningocele and Myelomeningocele","authors":"An-Shine Chao, Lan-Sin Jhang, P. C. Hsieh","doi":"10.4103/jmu.jmu_51_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_51_23","url":null,"abstract":"\u0000 Prenatal diagnosis of myelomeningocele remains challenging for obstetricians, ultrasonographers, and radiologists, although the increased maternal serum alpha-fetoprotein level aids in the confirmative diagnosis. Fetal cervical myelomeningocele and meningocele are very rare and unique types of myelomeningocele. Prenatal diagnosis of cervical myelomeningocele and meningocele should include the differential diagnosis and association of many intracranial and spino-skeletal pathogenetic variants and genetic diseases, including subependymal nodular heterotopia and Klippel–Feil syndrome. In this report, a comprehensive review of fetal cervical myelomeningocele with its prenatal diagnosis and long-term outcomes is presented.","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139627845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CME Test.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10802875/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139544011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-23eCollection Date: 2023-10-01DOI: 10.4103/jmu.jmu_206_21
Pathum Sookaromdee, Viroj Wiwanitkit
{"title":"Comment on Sonographic Evaluation of the Pancreas in Type 1 Diabetes Mellitus: A Case-control Study.","authors":"Pathum Sookaromdee, Viroj Wiwanitkit","doi":"10.4103/jmu.jmu_206_21","DOIUrl":"10.4103/jmu.jmu_206_21","url":null,"abstract":"","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10802864/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139543193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-23eCollection Date: 2023-10-01DOI: 10.4103/0929-6441.391844
[This retracts the article on p. 33 in vol. 27, PMID: 31031533.].
[这收回了第 27 卷第 33 页的文章，PMID：31031533]。
{"title":"Retraction: A Longitudinal Study of the 28 Joints of Disease Activity Score by Ultrasonographical Examination in Rheumatoid Arthritis Patients.","authors":"","doi":"10.4103/0929-6441.391844","DOIUrl":"10.4103/0929-6441.391844","url":null,"abstract":"<p><p>[This retracts the article on p. 33 in vol. 27, PMID: 31031533.].</p>","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10802881/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139543281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
João Pedro Cassin Scappa, A. Peixoto, N. Bravo-Valenzuela, G. Tonni, R. Mattar, E. Júnior
The objective of this study was to assess the ascending and descending aorta area measurements by three-dimensional (3D) ultrasound using spatiotemporal image correlation (STIC) in the rendering mode comparing these measurements with pregestational diabetic mothers and assessing the reproducibility of the method. We carried out a retrospective cross-sectional study with 58 normal and nine fetuses from pregestational diabetic mothers between 20 and 33 + 6 weeks of gestation. Fetal heart volumes were acquired at the level of four-chamber view to obtain the reconstructed planes for the ascending and descending aorta areas in the rendering mode. Linear regression was performed to assess the correlation between the fetal aorta areas and gestational age (GA). To assess the intra- and interobserver reproducibility, we used the concordance correlation coefficient (CCC). The mean ascending and descending aorta areas were 0.12 (0.02–0.48) and 0.11 (0.04–0.39) cm2 in normal fetuses, respectively. There was a moderate positive correlation between GA and ascending aorta area measurements (0.005676*GA – 0.01283; r = 0.53, P < 0.0001) and strong positive correlation between GA and descending aorta area (0.01095*GA – 0.1581; r = 0.68, P < 0.0001). We observed a weak intra- and interobserver reproducibility with CCC ranging from 0.05 to 0.91. The mean difference in the ascending and descending aorta area measurements of normal and fetuses of pregestational diabetic mothers was −0.03 cm2 (P = 0.276) and −0.03 cm2 (P = 0.231), respectively. The fetal ascending and descending aorta area measurements obtained by 3D ultrasound using STIC in the rendering mode increased with GA in normal fetuses. The method showed weak intra- and interobserver reproducibility.
{"title":"Area of the Fetal Ascending and Descending Aorta by Spatiotemporal Image Correlation in the Rendering Mode: Reproducibility and Comparison with Pregestational Diabetic Mothers","authors":"João Pedro Cassin Scappa, A. Peixoto, N. Bravo-Valenzuela, G. Tonni, R. Mattar, E. Júnior","doi":"10.4103/jmu.jmu_102_22","DOIUrl":"https://doi.org/10.4103/jmu.jmu_102_22","url":null,"abstract":"\u0000 \u0000 The objective of this study was to assess the ascending and descending aorta area measurements by three-dimensional (3D) ultrasound using spatiotemporal image correlation (STIC) in the rendering mode comparing these measurements with pregestational diabetic mothers and assessing the reproducibility of the method.\u0000 \u0000 \u0000 \u0000 We carried out a retrospective cross-sectional study with 58 normal and nine fetuses from pregestational diabetic mothers between 20 and 33 + 6 weeks of gestation. Fetal heart volumes were acquired at the level of four-chamber view to obtain the reconstructed planes for the ascending and descending aorta areas in the rendering mode. Linear regression was performed to assess the correlation between the fetal aorta areas and gestational age (GA). To assess the intra- and interobserver reproducibility, we used the concordance correlation coefficient (CCC).\u0000 \u0000 \u0000 \u0000 The mean ascending and descending aorta areas were 0.12 (0.02–0.48) and 0.11 (0.04–0.39) cm2 in normal fetuses, respectively. There was a moderate positive correlation between GA and ascending aorta area measurements (0.005676*GA – 0.01283; r = 0.53, P < 0.0001) and strong positive correlation between GA and descending aorta area (0.01095*GA – 0.1581; r = 0.68, P < 0.0001). We observed a weak intra- and interobserver reproducibility with CCC ranging from 0.05 to 0.91. The mean difference in the ascending and descending aorta area measurements of normal and fetuses of pregestational diabetic mothers was −0.03 cm2 (P = 0.276) and −0.03 cm2 (P = 0.231), respectively.\u0000 \u0000 \u0000 \u0000 The fetal ascending and descending aorta area measurements obtained by 3D ultrasound using STIC in the rendering mode increased with GA in normal fetuses. The method showed weak intra- and interobserver reproducibility.\u0000","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138591144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Isabel Kerrebijn, Chelsea E. Munding, Christine Horner, Sarah Atwi, M. Elfarnawany, A. Eibl, J. Eibl, Jenna L. Taylor, Chul Ho Kim, Bruce D. Johnson, Jon-Émile S. Kenny
Doppler ultrasound of the common carotid artery is used to infer central hemodynamics. For example, change in the common carotid artery corrected flow time (ccFT) and velocity time integral (VTI) are proposed surrogates of changing stroke volume. However, conflicting data exist which may be due to inadequate beat sample size and measurement variability – both intrinsic to handheld systems. In this brief communication, we determined the correlation between changing ccFT and carotid VTI during progressively severe central blood volume loss and resuscitation. Measurements were obtained through a novel, wireless, wearable Doppler ultrasound system. Sixteen participants (ages of 18–40 years with no previous medical history) were studied across 25 lower body-negative pressure protocols. Relationships were assessed using repeated-measures correlation regression models. In total, 33,110 cardiac cycles comprise this analysis; repeated-measures correlation showed a strong, linear relationship between ccFT and VTI. The strength of the ccFT-VTI relationship was dependent on the number of consecutively averaged cardiac cycles (R1 cycle = 0.70, R2 cycles = 0.74, and R10 cycles = 0.81). These results positively support future clinical investigations employing common carotid artery Doppler as a surrogate for central hemodynamics.
{"title":"The Correlation between Carotid Artery Corrected Flow Time and Velocity Time Integral during Central Blood Volume Loss and Resuscitation","authors":"Isabel Kerrebijn, Chelsea E. Munding, Christine Horner, Sarah Atwi, M. Elfarnawany, A. Eibl, J. Eibl, Jenna L. Taylor, Chul Ho Kim, Bruce D. Johnson, Jon-Émile S. Kenny","doi":"10.4103/jmu.jmu_80_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_80_23","url":null,"abstract":"\u0000 \u0000 Doppler ultrasound of the common carotid artery is used to infer central hemodynamics. For example, change in the common carotid artery corrected flow time (ccFT) and velocity time integral (VTI) are proposed surrogates of changing stroke volume. However, conflicting data exist which may be due to inadequate beat sample size and measurement variability – both intrinsic to handheld systems. In this brief communication, we determined the correlation between changing ccFT and carotid VTI during progressively severe central blood volume loss and resuscitation.\u0000 \u0000 \u0000 \u0000 Measurements were obtained through a novel, wireless, wearable Doppler ultrasound system. Sixteen participants (ages of 18–40 years with no previous medical history) were studied across 25 lower body-negative pressure protocols. Relationships were assessed using repeated-measures correlation regression models.\u0000 \u0000 \u0000 \u0000 In total, 33,110 cardiac cycles comprise this analysis; repeated-measures correlation showed a strong, linear relationship between ccFT and VTI. The strength of the ccFT-VTI relationship was dependent on the number of consecutively averaged cardiac cycles (R1 cycle = 0.70, R2 cycles = 0.74, and R10 cycles = 0.81).\u0000 \u0000 \u0000 \u0000 These results positively support future clinical investigations employing common carotid artery Doppler as a surrogate for central hemodynamics.\u0000","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138592383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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