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intra-operative ultrasound

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https://www.readbyqxmd.com/read/28443787/ultrasound-based-motor-control-training-for-the-pelvic-floor-pre-and-post-prostatectomy-scoring-reliability-and-skill-acquisition
#1
Stuart Doorbar-Baptist, Roger Adams, Trudy Rebbeck
AIM: This study documents a protocol designed to evaluate pelvic floor motor control in men with prostate cancer. It also aims to evaluate the reliability of therapists in rating motor control of pelvic floor muscles (PFMs) using real time ultrasound imaging (RUSI) video clips. We further determine predictors of acquiring motor control. METHODS: Ninety-one men diagnosed with prostate cancer attending a physiotherapy clinic for pelvic floor exercises were taught detailed pelvic floor motor control exercises by a physiotherapist using trans-abdominal RUSI for biofeedback...
April 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28437679/nodal-recurrence-after-stereotactic-body-radiotherapy-for-early-stage-non-small-cell-lung-cancer-incidence-and-proposed-risk-factors
#2
REVIEW
Krista C J Wink, Angela van Baardwijk, Esther G C Troost, Dirk De Ruysscher
Stereotactic body radiotherapy (SBRT) is an alternative to surgery for patients with early stage non-small cell lung cancer (NSCLC) who are inoperable due to comorbid disease or who refuse surgery. SBRT results in an excellent local control rate of more than 90%, which is comparable to surgery, while short and long-term overall toxicity is low. Surgically treated patients are often more extensively staged pre-operatively, e.g. with endobronchial ultrasound and/or mediastinoscopy, and typically undergo intra-operative lymph node dissection or sampling...
April 12, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28433046/-the-risks-of-retroperitoneoscopic-adrenalectomy
#3
P Zonča, M Peteja, P Vávra, V Richter, P Ostruszka
INTRODUCTION: Minimally invasive adrenalectomy has become the gold standard for surgery of the suprarenal gland. Retroperitoneoscopic adrenalectomy with dorsal approach is preferred. The aim of our case report is to discuss potential complications that may arise from retroperitoneoscopic adrenalectomy, specifically an intra-operative injury of the inferior vena cava. CASE REPORT: A 47-year-old male patient was admitted to undergo elective adrenalectomy on the right side...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28412956/management-of-suspected-common-bile-duct-stones-on-cholangiogram-during-same-stay-cholecystectomy-for-acute-gallstone-related-disease
#4
Sandra de Sousa, Olivier Tobler, Pouya Iranmanesh, Jean-Louis Frossard, Philippe Morel, Christian Toso
BACKGROUND: Recent data have suggested that upfront cholecystectomy should be performed even in the presence of moderately abnormal liver function tests (LFTs). As a consequence, more common bile duct (CBD) stones are discovered on intra-operative cholangiogram. We assessed the presentation and management of such patients to refine their management plan. METHODS: Adult patients (>16 years) with an acute gallstone-related disease who had undergone same-stay cholecystectomy from January 2013 to January 2015 were retrospectively assessed...
April 17, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28412948/a-computerized-tablet-system-for-evaluating-treatment-of-essential-tremor-by-magnetic-resonance-guided-focused-ultrasound
#5
Fred Tam, Yuexi Huang, Michael L Schwartz, Tom A Schweizer, Kullervo Hynynen, Simon J Graham
BACKGROUND: Transcranial magnetic resonance guided focused ultrasound is an emerging technology under evaluation for treatment of essential tremor, a prevalent movement disorder. A qualitative evaluation is performed by a clinician periodically during the procedure to maximize treatment effects and minimize adverse effects. The present work demonstrates a magnetic resonance-compatible method to enable more precise, quantitative measurement of tremor severity. METHODS: Tremor severity was measured in 12 patients pre-, post-, and intra-operatively, using a magnetic resonance-compatible tablet and a computerized adaptation of drawing tasks from the widely-used Fahn-Tolosa-Marin Tremor Rating Scale...
April 17, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28400306/-can-3d-power-doppler-indices-improve-the-prenatal-diagnosis-of-a-potentially-morbidly-adherent-placenta-in-patients-with-placenta-previa
#6
Ziad A Haidar, Ramesha Papanna, Baha M Sibai, Nina Tatevian, Oscar A Viteri, Patricia C Vowels, Sean C Blackwell, Kenneth J Moise
BACKGROUND: Traditionally, 2D ultrasound parameters have been used for the diagnosis of a suspected morbidly adherent placenta (MAP) previa. More objective techniques have not been well studied yet. OBJECTIVE: To determine the ability of prenatal 3D power Doppler analysis of flow and vascular indices to predict the morbidly adherent placenta (MAP) objectively. METHODS: Prospective cohort study was performed in women between 28-32 weeks with known placenta previa...
April 8, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28394527/-laparoscopic-resection-of-the-transplanted-kidney-for-renal-cell-carcinoma-t1n0m0
#7
V I Vtorenko, R N Trushkin, A E Lubennikov, N O Kolesnikov
Laparoscopic resection of the transplanted kidney has been very rarely reported in the literature. On the one hand, this is due to the extremely low incidence of tumors of renal transplants. On the other hand, these patients are usually managed by open surgery due to difficulties in laparoscopic resection because of the scar tissue in the kidney area. Other options, though rarely performed, are cryosurgery and radiofrequency ablation of the tumor. In this article we report our own experience with a patient who underwent laparoscopic resection of renal transplant for renal cell carcinoma T1aN0M0 19 years after kidney transplantation...
April 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28392182/differences-in-cavernosal-artery-parameters-according-to-different-anatomic-sampling-locations-during-the-diagnosis-of-vascular-erectile-dysfunction-using-duplex-ultrasound
#8
Fabio Pezzoni, Fabrizio Ildefonso Scroppo, Giorgio Cavallini
OBJECTIVE: To establish a standard location for examining penile cavernosal arteries (CAs) using dynamic duplex Doppler ultrasound (PDDU) examination in the diagnosis of non-arterial erectile dysfunction (ED) or arterial insufficiency. PATIENTS AND METHODS: Two groups of 105 patients each were enrolled. The first group (age 56.3 ± 6.0 years) displayed clinical patterns of arterial insufficiency; the second group (age 35.2 ± 4.7 years) displayed clinical patterns of non-arterial ED...
April 6, 2017: Urology
https://www.readbyqxmd.com/read/28391601/retrospective-evaluation-of-cerebral-tumors-resect-a-clinical-database-of-pre-operative-mri-and-intra-operative-ultrasound-in-low-grade-glioma-surgeries
#9
Yiming Xiao, Maryse Fortin, Geirmund Unsgård, Hassan Rivaz, Ingerid Reinertsen
PURPOSE: The advancement of medical image processing techniques, such as image registration, can effectively help improve the accuracy and efficiency of brain tumor surgeries. However, it is often challenging to validate these techniques with real clinical data due to the rarity of such publicly available repositories. ACQUISITION AND VALIDATION METHODS: Pre-operative magnetic resonance images (MRI), and intra-operative ultrasound (US) scans were acquired from 23 patients with low-grade glioma who underwent surgeries at St...
April 9, 2017: Medical Physics
https://www.readbyqxmd.com/read/28391583/3d-intra-operative-ultrasound-and-mr-image-guidance-pursuing-an-ultrasound-based-management-of-brainshift-to-enhance-neuronavigation
#10
Marco Riva, Christoph Hennersperger, Fausto Milletari, Amin Katouzian, Federico Pessina, Benjamin Gutierrez-Becker, Antonella Castellano, Nassir Navab, Lorenzo Bello
BACKGROUND: Brainshift is still a major issue in neuronavigation. Incorporating intra-operative ultrasound (iUS) with advanced registration algorithms within the surgical workflow is regarded as a promising approach for a better understanding and management of brainshift. This work is intended to (1) provide three-dimensional (3D) ultrasound reconstructions specifically for brain imaging in order to detect brainshift observed intra-operatively, (2) evaluate a novel iterative intra-operative ultrasound-based deformation correction framework, and (3) validate the performance of the proposed image-registration-based deformation estimation in a clinical environment...
April 8, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28387663/quantitative-parameters-of-contrast-enhanced-ultrasound-in-breast-invasive-ductal-carcinoma-the-correlation-with-pathological-prognostic-factors
#11
Chen-Li Ji, Xiao-Long Li, Ya-Ping He, Dan-Dan Li, Xin-Gang Gu, Hui-Xiong Xu
PURPOSE: To investigate the correlation between quantitative parameters on contrast-enhanced ultrasound (CEUS) and pathological prognostic factors in patients with breast invasive ductal carcinomas (IDCs). MATERIALS AND METHODS: 102 patients with pathologically proven IDCs were retrospectively enrolled and all were preoperatively evaluated by CEUS. Quantitative analysis was conducted using the SonoLiver® software. On the parametric imaging, the data of rise time (RT), time to peak (TTP), mean transit time (mTT) and maximum intensity (IMAX) were recorded...
April 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28370687/mid-trimester-sonographic-cervical-consistency-index-to-predict-spontaneous-preterm-birth-in-a-low-risk-population
#12
Núria Baños, Clara Murillo-Bravo, Carla Julià, Federico Migliorelli, Alvaro Perez-Moreno, Jose Ríos, Eduard Gratacos, Lil Valentin, Montse Palacio
OBJECTIVES: To estimate the ability of mid-trimester sonographic Cervical Consistency Index (CCI) to predict spontaneous preterm birth (sPTB) in low-risk pregnancies and to compare its performance with mid-trimester sonographic cervical length (CL). METHODS: This is a prospective cohort study including women with singleton pregnancies examined with ultrasound at 19 + 0 to 24 + 6 gestational weeks. All underwent transvaginal ultrasound examination of the cervix, but CCI and CL were measured off-line only in women without risk factors for sPTB...
March 31, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28361831/evolving-management-of-insulinoma-experience-at-a-tertiary-care-centre
#13
Viveka P Jyotsna, Sujoy Pal, D Kandasamy, S Gamanagatti, P K Garg, N Raizada, Peush Sahni, C S Bal, N Tandon, A C Ammini
BACKGROUND & OBJECTIVES: Since our previous study in 2006, several new modalities for localization of cause of endogenous hyperinsulinemic hypoglycaemia such as multiphasic computed tomography (CT), multiphasic magnetic resonance imaging (MRI), endoscopic ultrasound (EUS), intraoperative ultrasound, and intra-arterial calcium infusion with arterial stimulation venous sampling (ASVS) have become available. Therefore, to evaluate the relative usefulness of various imaging modalities to guide future management in terms of diagnosis and patient care, we analyzed presentation and management of patients of endogenous hyperinsulinemic hypoglycaemia...
November 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28359927/ultrasonography-during-surgery-to-approach-cerebral-metastases-effect-on-karnofsky-index-scores-and-tumor-volume
#14
Marcelo de Lima Oliveira, Helder Picarelli, Marcos Roberto Menezes, Robson Amorim, Manoel Jacobsen Teixeira, Edson Bor-Seng-Shu
BACKGROUND: The goals of treating a cerebral metastasis (CM) are to achieve local control of the disease and to improve patients' quality of life. OBJECTIVE: The aim of this study was to analyse the effect of conventional surgery supported by intra-operative ultrasound (IOUS) to approach a CM. To perform this analysis, we determined Karnofsky post-operative scores (KPS) and tumor resection grades. METHODS: Patients with a CM diagnosis were included in this study...
March 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28337285/preclinical-and-clinical-evaluation-of-the-liver-tumor-irreversible-electroporation-by-magnetic-resonance-imaging
#15
Matteo Figini, Xifu Wang, Tianchu Lyu, Zhanliang Su, Daniele Procissi, Vahid Yaghmai, Andrew C Larson, Zhuoli Zhang
Irreversible electroporation (IRE) is a relatively new technique for tumor ablation. It has shown promising results in difficult cases where surgery is not recommended and delicate anatomic structures are present near or within the tumor. Currently, liver cancer is one of the most common targets for IRE treatment. Pre-operative and post-operative imaging has a key role in IRE procedures and research studies. Although ultrasound is usually the first choice, especially for intra-operative guidance, magnetic resonance imaging (MRI) plays an important role in the visualization and characterization of tumor before and after IRE in clinical and preclinical studies...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28327582/real-time-sentinel-lymph-node-biopsy-guidance-using-combined-ultrasound-photoacoustic-fluorescence-imaging-in-vivo-proof-of-principle-and-validation-with-nodal-obstruction
#16
Jeeun Kang, Jin Ho Chang, Sun Mi Kim, Hak Jong Lee, Haemin Kim, Brian C Wilson, Tai-Kyong Song
Precise sentinel lymph node (SLN) identification is crucial not only for accurate diagnosis of micro-metastases at an early stage of cancer progression but also for reducing the number of SLN biopsies (SLNB) to minimize their severe side effects. Furthermore, it is desirable that an SLNB guidance should be as safe as possible in routine clinical use. Although there are currently various SLNB guidance methods for pre-operative or intra-operative assessment, none are ideal. We propose a real-time SLNB guidance method using contrast-enhanced tri-modal images (i...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28320558/can-intra-operative-fluorescence-play-a-significant-role-in-hepatobiliary-surgery
#17
REVIEW
A D Jones, J C Wilton
Liver resection remains the cornerstone of curative treatment for hepatocellular carcinoma and colorectal cancer liver metastases. Its success is dependent upon the extent of resection achieved. To this end, intra-operative imaging techniques have been experimented with to aid the surgeon. Fluorescence guided surgery (FGS) utilises the properties of near infrared light emitting molecules to identify malignant tissue, enabling the surgeon to maximise resection of diseased tissue and minimise collateral damage...
March 6, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28314199/unusual-ultrasound-appearance-of-small-bowel-intussusception-and-secondary-bowel-obstruction-in-a-child-with-peutz-jeghers-syndrome
#18
Lei Wu, Ramesh S Iyer, George T Drugas, A Luana Stanescu
Small bowel intussusception (SBI) in pediatric patients resolves spontaneously in the majority of cases. Pathologic small bowel intussusception with a lead point is rare in children. Ultrasound (US) is the preferred initial imaging study for the diagnosis of intussusception. We report a case of long-segment SBI and secondary bowel obstruction caused by a large hamartomatous polyp. This case emphasizes unique, atypical ultrasound findings that may be encountered in small bowel intussusception, with correlative radiographic, CT (computed tomography) and intra-operative findings...
March 9, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28303631/surgical-outcomes-of-percutaneous-nephrolithotomy-in-3402-patients-and-results-of-stone-analysis-in-1559-patients-from-a-single-centre-in-pakistan
#19
Syed Adibul Hasan Rizvi, Manzoor Hussain, Syed Hassan Askari, Altaf Hashmi, Murli Lal, Mirza Naqi Zafar
OBJECTIVE: To report our experience of a series of percutaneous nephrolithotomy (PCNL) procedures in a single centre over 18 years in terms of patient and stone characteristics, indications, stone clearance and complications, along with the results of chemical analysis of stones in a subgroup. PATIENTS AND METHODS: We retrospectively analysed the outcomes of PCNL in 3402 patients, who underwent the procedure between 1997 and 2014, obtained from a prospectively maintained database...
March 16, 2017: BJU International
https://www.readbyqxmd.com/read/28295403/toward-a-3d-transrectal-ultrasound-system-for-verification-of-needle-placement-during-high-dose-rate-interstitial-gynecologic-brachytherapy
#20
Jessica Robin Rodgers, Kathleen Surry, Eric Leung, David D'Souza, Aaron Fenster
PURPOSE: Treatment for gynecologic cancers, such as cervical, recurrent endometrial, and vaginal malignancies, commonly includes external-beam radiation and brachytherapy. In high-dose-rate (HDR) interstitial gynecologic brachytherapy, radiation treatment is delivered via hollow needles that are typically inserted through a template on the perineum with a cylinder placed in the vagina for stability. Despite the need for precise needle placement to minimize complications and provide optimal treatment, there is no standard intra-operative image-guidance for this procedure...
March 15, 2017: Medical Physics
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