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intra-operative ultrasound

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https://www.readbyqxmd.com/read/29114280/comparison-of-stereotactic-and-ultrasound-guided-biopsy-of-solid-supratentorial-tumor-a-preliminary-report
#1
Guru Dutta Satyarthee, P Sarat Chandra, Bhawani S Sharma, V S Mehta
Introduction: The computed tomography (CT) guided stereotactic biopsy (STB) is considered as method of choice for biopsy of intracranial mass lesions. However, it's disadvantages are frame fixation, time requirement for transportation between CT scan suit to the operation theater with added much higher equipment cost in the relatively resource scarred developing country. Ultrasound-guided biopsy (USGB) is relatively simpler, economical, less time consuming, and real-time procedure. Clinical Materials and Methods: Thirty-seven consecutively admitted patients with supratentorial brain tumors, who underwent biopsy of the lesion using CT compatible stereotactic and ultrasound-guided (USGB) procedure formed cohort of the study...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29111161/effect-of-low-intensity-pulsed-ultrasound-on-joint-injury-and-post-traumatic-osteoarthritis-an-animal-study
#2
Talal Zahoor, Reed Mitchell, Priya Bhasin, Yi Guo, Sharada Paudel, Lew Schon, Zijun Zhang
This study investigated the therapeutic potential of low-intensity pulsed ultrasound (LIPUS) in post-traumatic osteoarthritis (PTOA). Intra-articular fracture of the medial tibial plateau was surgically created in 30 rats. LIPUS was applied to the operated joints either for the first 2 wk (LIPUS1-2 group) or in weeks 4 and 5 after intra-articular fracture (LIPUS4-5 group). In controls, the operated knees were not treated with LIPUS (LIPUS0 group). The rats were monitored with weekly gait analysis and euthanized at week 8...
October 27, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29038858/surgical-management-of-primary-hyperparathyroidism
#3
Stephen Ryan, Danielle Courtney, Julia Moriariu, Conrad Timon
We reviewed the surgical management of primary hyperparathyroidism through a retrospective chart review of 200 parathyroidectomy procedures performed over a 12 year period. Epidemiological data and accuracy of radiological investigations used in identifying pathological parathyroid tissue location were assessed. We determined how often simultaneous removal of thyroid tissue was required during parathyroidectomy and the associated pathology. Radiology reports were screened to determine if confirmed thyroid pathology from histological specimens were referenced pre-operatively...
December 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29022481/intra-and-interobserver-variability-of-intrapartum-transperineal-ultrasound-measurements-with-contraction-and-pushing
#4
José A Sainz, Ana Fernández-Palacín, Carlota Borrero, Adriana Aquise, Zenaida Ramos, José A García-Mejido
The aim of this study was to evaluate the inter- and intraobserver correlation of the different intrapartum-transperineal-ultrasound-parameters(ITU) (angle of progression (AoP), progression-distance (PD), head-direction (HD), midline-angle (MLA) and head-perineum distance (HPD)) with contraction and pushing. We evaluated 28 nulliparous women at full dilatation under epidural analgesia. We performed a transperineal ultrasound evaluating AoP and PD in the longitudinal plane, and MLA and HPD in the transverse plane...
October 12, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29020700/a-case-report-of-delayed-intra-abdominal-and-intra-luminal-haemorrhage-after-polypectomy
#5
Albrecht Neesse, Marian Grade, Sebastian Dango, Michael Ghadimi, Volker Ellenrieder, Steffen Kunsch, Ahmad Amanzada
We report the case of a 70-year-old man who presented with hematochezia, anaemia, and severe abdominal pain 6 days after polypectomy. Contrast-enhanced ultrasound and computed tomography revealed no signs of free intra-abdominal air but showed intra-abdominal and intra-luminal bleeding. The patient was referred to colonoscopy in the operation room, which showed a coagula and venous bleeding at the polypectomy site. Emergency laparotomy was performed and revealed a large intra-abdominal mesocolic hematoma, which was surgically removed...
October 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28986569/algorithm-guided-outlining-of-105-pancreatic-cancer-liver-metastases-in-ultrasound
#6
Alexander Hann, Lucas Bettac, Mark M Haenle, Tilmann Graeter, Andreas W Berger, Jens Dreyhaupt, Dieter Schmalstieg, Wolfram G Zoller, Jan Egger
Manual segmentation of hepatic metastases in ultrasound images acquired from patients suffering from pancreatic cancer is common practice. Semiautomatic measurements promising assistance in this process are often assessed using a small number of lesions performed by examiners who already know the algorithm. In this work, we present the application of an algorithm for the segmentation of liver metastases due to pancreatic cancer using a set of 105 different images of metastases. The algorithm and the two examiners had never assessed the images before...
October 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28985844/assessment-of-hemodynamic-response-to-fluid-resuscitation-of-patients-with-intra-abdominal-sepsis-in-low-and-middle-income-countries
#7
Egide Abahuje, Robert Munyaneza, Robert Riviello, Faustin Ntirenganya
BACKGROUND: Patients with intra-abdominal infections need to achieve adequate hemodynamic status before being taken to the operating room. Multiple parameters (urinary output [UOP], vital signs, inferior vena cava collapsibility index, and central venous pressure) may be used to assess hemodynamic response to fluid resuscitation, but the options are few in limited-resource settings. This study aimed at assessing if a bedside-performed ultrasound to assess the inferior vena cava collapsibility index is superior to UOP in assessing hemodynamic response to fluid resuscitation...
October 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28960414/intra-and-inter-observer-reproducibility-of-third-trimester-uterine-artery-pulsatility-index
#8
Laura Marchi, Claudia Gaini, Chiara Franchi, Federico Mecacci, Caterina Bilardo, Lucia Pasquini
OBJECTIVES: The primary aim of the study was to investigate intra- and inter-observer reproducibility of Uterine Artery (UtA) Pulsatility Index (PI) in the third trimester of pregnancy. The secondary aim of the study was to examine whether high maternal Body Mass Index (BMI) or gestational age (GA) influence the reliability of this measurement. METHODS: Singleton pregnancies in women with known BMI were recruited between 30(+0) and 40(+0) weeks. UtA PI Doppler measurements were performed prospectively, independently and blindly by two Fetal Medicine Foundation accredited operators...
September 27, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28960319/sonographic-assessment-of-volaemia-development-and-validation-of-a-new-method-in-dogs
#9
M Cambournac, I Goy-Thollot, A Violé, C Boisvineau, C Pouzot-Nevoret, A Barthélemy
OBJECTIVES: The aims of this study were to describe a method for the sonographic assessment of volaemia, to determinate inter- and intra-operator variability and to assess the ability to detect blood loss after blood donation in healthy dogs. MATERIALS AND METHODS: The left kidney was identified in a spleno-renal view, and transverse views of the caudal vena cava and aorta were obtained in 12 dogs. Vessel diameters were measured in B-mode, in duplicate by two operators, and the caudal vena cava:aorta ratio was calculated...
September 27, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28927554/catheter-foam-sclerotherapy-of-the-great-saphenous-vein-with-perisaphenous-tumescence-infiltration-and-saphenous-irrigation
#10
Attilio Cavezzi, Giovanni Mosti, Fausto Campana, Lorenzo Tessari, Luca Bastiani, Simone U Urso
OBJECTIVES: This was a prospective observational study to assess the short- to mid-term efficacy and safety of catheter foam sclerotherapy (CFS) of the great saphenous vein (GSV), including peri-saphenous tumescence infiltration (PST) and intra-saphenous saline irrigation (ISI), in combination with phlebectomy of the varicose tributaries. METHODS: Eighty-eight limbs in 82 patients (19 male, 63 female, mean age 55.7 years) affected by varices related to GSV incompetence were submitted to CFS of the refluxing GSV segment after PST and ISI, combined with phlebectomy of the varicose tributaries...
November 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28925747/protocol-and-quality-assurance-for-carotid-imaging-in-100-000-participants-of-uk-biobank-development-and-assessment
#11
Sean Coffey, Adam J Lewandowski, Steve Garratt, Rudy Meijer, Steven Lynum, Ram Bedi, James Paterson, Mohammad Yaqub, J Alison Noble, Stefan Neubauer, Steffen E Petersen, Naomi Allen, Cathie Sudlow, Rory Collins, Paul M Matthews, Paul Leeson
Background Ultrasound imaging is able to quantify carotid arterial wall structure for the assessment of cerebral and cardiovascular disease risks. We describe a protocol and quality assurance process to enable carotid imaging at large scale that has been developed for the UK Biobank Imaging Enhancement Study of 100,000 individuals. Design An imaging protocol was developed to allow measurement of carotid intima-media thickness from the far wall of both common carotid arteries. Six quality assurance criteria were defined and a web-based interface (Intelligent Ultrasound) was developed to facilitate rapid assessment of images against each criterion...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28919267/post-carotid-endarterectomy-hypertension-part-2-association-with-peri-operative-clinical-anaesthetic-and-transcranial-doppler-derived-parameters
#12
Jeremy E Newman, Mathew J Bown, Robert D Sayers, Jonathan P Thompson, Thompson G Robinson, Bryan Williams, Ronney Panerai, Peter Lacy, A Ross Naylor
OBJECTIVE/BACKGROUND: The first paper in this series observed that pre-operative baroreceptor dysfunction and poorly controlled hypertension were independently predictive for identifying patients who went on to require treatment for post-endarterectomy hypertension (PEH). The second paper examines the influence of intra-operative patient, transcranial Doppler (TCD) ultrasound, and anaesthetic variables on the incidence of PEH. METHODS: In total, 106 patients underwent carotid endarterectomy (CEA) under general anaesthesia...
November 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28918661/comparable-postoperative-pain-levels-using-2-different-nerve-blocks-in-the-operative-treatment-of-displaced-intra-articular-calcaneal-fractures
#13
Siem A Dingemans, Kristian J de Ruiter, Merel F N Birnie, J Carel Goslings, Gan van Samkar, Tim Schepers
BACKGROUND: The aim of this study was to compare the postoperative pain levels in patients undergoing osteosynthesis of the calcaneus with either a popliteal nerve block or an ankle block. METHODS: A retrospective analysis of all consecutive patients undergoing operative fixation of a calcaneal fracture via a sinus tarsi approach between August 2012 and April 2017 in a single foot/ankle specialized center was performed. Single-shot popliteal blocks were placed using ultrasound guidance by an anesthesiologist while ankle blocks were placed by a foot/ankle specialized surgeon...
September 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28871171/chemotherapy-response-monitoring-of-breast-cancer-patients-using-quantitative-ultrasound-based-intra-tumour-heterogeneities
#14
Ali Sadeghi-Naini, Lakshmanan Sannachi, Hadi Tadayyon, William T Tran, Elzbieta Slodkowska, Maureen Trudeau, Sonal Gandhi, Kathleen Pritchard, Michael C Kolios, Gregory J Czarnota
Anti-cancer therapies including chemotherapy aim to induce tumour cell death. Cell death introduces alterations in cell morphology and tissue micro-structures that cause measurable changes in tissue echogenicity. This study investigated the effectiveness of quantitative ultrasound (QUS) parametric imaging to characterize intra-tumour heterogeneity and monitor the pathological response of breast cancer to chemotherapy in a large cohort of patients (n = 100). Results demonstrated that QUS imaging can non-invasively monitor pathological response and outcome of breast cancer patients to chemotherapy early following treatment initiation...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28845941/-ultrasound-guided-percutaneous-cryoablation-of-renal-tumors
#15
D V Enikeev, P V Glybochko, Yu G Alyaev, L M Rapoport, A V Amosov, T M Alekseeva, M E Enikeev, D G Tsarichenko, D V Chinenov, L D Kozmin, Z K Dzhalaev, M S Taratkin
INTRODUCTION: Surgery remains the gold-standard curative treatment for localized (T1) renal carcinoma. However, recent medical-technological advances have led to the development of new minimally invasive treatment options, one of which is percutaneous cryoablation. AIM: To assess the effectiveness and safety of ultrasound-guided percutaneous cryoablation of renal tumors. MATERIALS AND METHODS: The study comprised 12 patients aged 52 to 76 years who underwent ultrasound-guided percutaneous cryoablation of renal tumors from 2015 to 2017...
July 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28844704/gallbladder-adenomyomatosis-diagnosis-and-management
#16
N Golse, M Lewin, A Rode, M Sebagh, J-Y Mabrut
Gallbladder (GB) adenomyomatosis (ADM) is a benign, acquired anomaly, characterized by hypertrophy of the mucosal epithelium that invaginates into the interstices of a thickened muscularis forming so-called Rokitansky-Aschoff sinuses. There are three forms of ADM: segmental, fundal and more rarely, diffuse. Etiology and pathogenesis are not well understood but chronic inflammation of the GB is a necessary precursor. Prevalence of ADM in cholecystectomy specimens is estimated between 1% and 9% with a balanced sex ratio; the incidence increases after the age of 50...
October 2017: Journal of Visceral Surgery
https://www.readbyqxmd.com/read/28843866/comparing-two-different-techniques-of-rectus-sheath-block-after-single-port-laparoscopic-surgery-in-benign-adnexal-mass-patients-surgical-versus-ultrasonography-guidance-a-randomized-single-blind-case-controlled-study
#17
Woosuk Chung, Yeomyung Yoon, Jae Woo Kim, Sun In Kwon, Jung Bo Yang, Ki Hwan Lee, Heon Jong Yoo
OBJECTIVE: The purpose of this study was to compare the analgesic effect of surgical bilateral rectus sheath block (BRSB) and ultrasonography-guidance BRSB in patients undergoing single port laparoscopic surgery (SPLS) for ovarian cyst. STUDY DESIGN: Seventy-five patients were randomly allocated into three groups: the control and ultrasound (US)-guidance group (n=25, each) received BRSB with 10ml of normal saline or 0.5% ropivacaine bilaterally under US guidance at the end of surgery, respectively; the surgical group (n=25) received BRSB with10ml of 0...
August 18, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28805238/ultrasound-assessment-of-gastric-contents-in-children-undergoing-elective-ear-nose-and-throat-surgery-a-prospective-cohort-study
#18
F-P Desgranges, A-C Gagey Riegel, C Aubergy, M de Queiroz Siqueira, D Chassard, L Bouvet
Ultrasound examination of the gastric antrum allows reliable assessment of gastric contents and volume. Postoperative assessment of gastric contents before recovery from anaesthesia could help the physician to choose the most appropriate extubation technique after surgery in children. In this prospective observational study, we assessed whether significant changes occurred in gastric contents during the intra-operative period in children undergoing elective ear, nose and throat (ENT) surgery. Children aged between six months and 16 years were recruited consecutively...
November 2017: Anaesthesia
https://www.readbyqxmd.com/read/28790029/twisted-intra-abdominal-cyst-in-a-neonate-a-surprise-revelation
#19
Ferzine Mohamed, Ramesh Babu Telugu, Immanuel Sampath Karl
We, herein, present a male neonate with an antenatally detected intra-abdominal cyst who presented at 18 days of life at which time, the ultrasound revealed a 5×4 cm cyst. Since he was asymptomatic, we planned to repeat the ultrasound a month later and operate if the cyst showed no regression. However, a week later, he presented with an acute abdomen, irritable cry and a repeat ultrasound showing a larger (8×6 cm) cystic mass with debris within. He was taken up for an emergency laparotomy. Intraoperatively, the cyst was found arising from the left lateral abdominal wall free from all structures with a twisted pedicle...
August 8, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28777271/point-of-care-ultrasound-in-acute-neonatal-ascites
#20
Sriram Ramgopal, Stefan Scholz, Jennifer R Marin
We present a 4-week-old neonate with acute onset of bloody stools and abdominal distention. Point-of-care ultrasound performed in the emergency department allowed for rapid diagnosis of a large amount of free intra-abdominal fluid, which together with the physical findings, prompted emergent operative exploration revealing chylous ascites. Although no areas of active volvulus were identified intraoperatively, findings in the case were suggestive of small bowel volvulus and deemed as the most likely etiology for this patient's presentation...
August 2017: Pediatric Emergency Care
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