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https://www.readbyqxmd.com/read/29788854/-myocardial-clefts-incidental-findings-in-parainfectious-myocarditis
#1
Florian Berger, Christopher Hansi, Tilo Niemann
Myocardial Clefts - Incidental Findings in Parainfectious Myocarditis Abstract. We report a 23-year-old woman with parainfectious myocarditis due to gastroenteritis. A transthoracic echocardio-graphy revealed a recess in the left inferobasal ventricle. For further investigation, cardiac magnetic resonance imaging was initiated, which revealed a myocardial cleft, a harmless structural variation of the heart. Cardiac magnetic resonance is a non-invasive imaging technique with a high spatial and temporal resolution that enables a precise depiction of the cardiac anatomy and therefore allows for a differentiation between normal and pathological structural variations of the heart...
2018: Praxis
https://www.readbyqxmd.com/read/29769055/one-visceral-artery-may-be-enough-successful-pancreatectomy-in-a-patient-with-total-occlusion-of-the-celiac-and-superior-mesenteric-arteries
#2
Evangelos Tagkalos, Florian Jungmann, Hauke Lang, Stefan Heinrich
BACKGROUND: The anatomic variations of the visceral arteries are not uncommon. The liver arterial blood supply shows 50% variability between humans, with the most common anatomy being one hepatic artery arising from the celiac trunk and one pancreatico-duodenal arcade between the celiac trunk and the superior mesenteric artery. Occlusion of one artery are mostly asymptomatic but may become clinically relevant when surgery of the liver, bile duct or the pancreas is required. If these pathologies are not reversible, an oncologic pancreatic head resection cannot be performed...
May 16, 2018: BMC Surgery
https://www.readbyqxmd.com/read/29759935/applied-anatomy-of-round-window-and-adjacent-structures-of-tympanum-related-to-cochlear-implantation
#3
Shraddha Jain, Sagar Gaurkar, Prasad T Deshmukh, Mohnish Khatri, Sanika Kalambe, Pooja Lakhotia, Deepshikha Chandravanshi, Ashish Disawal
INTRODUCTION: Various aspects of the round window anatomy and anatomy of posterior tympanum have relevant implications for designing cochlear implant electrodes and visualizing the round window through facial recess. Preoperative information about possible anatomical variations of the round window and its relationships to the adjacent neurovascular structures can help reduce complications in cochlear implant surgery. OBJECTIVE: The present study was undertaken to assess the common variations in round window anatomy and the relationships to structures of the tympanum that may be relevant for cochlear implant surgery...
April 19, 2018: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29759708/intra-atrial-right-coronary-artery-and-its-ablation-implications
#4
Balaji Krishnan, Caroline Cross, Richard Dykoski, David G Benditt, Mackenzie Mbai, Edward McFalls, Jian-Ming Li, Stefan Bertog, Venkatakrishna N Tholakanahalli
OBJECTIVES: The study examined the frequency in which a right coronary artery (RCA) anomaly resulting in intra-atrialization of the vessel might increase risk of RCA damage during routine radiofrequency ablation in the right atrium even with low power or temperature. BACKGROUND: Right coronary artery (RCA) injury with endocardial RF ablation of the right atrium is a rare complication. METHODS: This prospective observational study comprised an analysis of coronary artery anatomies in 331 patients who underwent autopsies at our institution from 2005 to 2014...
September 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29702024/video-preoperative-ct-angiography-for-fibular-free-flap-reconstructions
#5
Bilal Mujtaba, Gaurav K Synghal, Patrick B Garvey, Behrang Amini, Tamara Miner Haygood, John E Madewell, Colleen M Costelloe
OBJECTIVE: The objective of this video article is to provide an introduction to the use of fibular free flaps. Normal and variant vascular anatomy of the fibular free flap is discussed, as are imaging acquisition and CT angiography interpretation, computer-assisted design and manufacturing, and the limitations of the fibular free flap. CONCLUSION: The fibular free flap is commonly used for head and neck reconstructive surgery. Variation exists between individuals regarding the origin of the peroneal artery and the perforating arteries...
June 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29700856/defining-the-width-of-the-normal-tibial-plateau-relative-to-the-distal-femur-critical-normative-data-for-identifying-pathologic-widening-in-tibial-plateau-fractures
#6
Adam M Johannsen, Austin M Cook, Michael J Gardner, Julius A Bishop
Tibial plateau widening in the setting of fracture is an indication for surgical treatment, and restoring width is an important goal of surgery. In order to identify and correct pathological widening, the width of the normal tibial plateau must first be defined. The aim of this study was to establish normative data for the width of the tibial plateau relative to the distal femur to enable surgeons to identify and correct pathological widening in the setting of tibial plateau fracture. Fifty-one uninjured anteroposterior (AP) knee radiographs and 11 XR and CT scans of lateral tibial plateau fractures were retrospectively reviewed...
April 26, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29675634/investigation-of-circle-of-willis-variants-and-hemodynamic-parameters-in-twins-using-transcranial-color-coded-doppler-sonography
#7
Bianka Forgó, Ádám Domonkos Tárnoki, Dávid László Tárnoki, Levente Littvay, Corrado Fagnani, Maria Antonietta Stazi, Giorgio Meneghetti, Emanuela Medda, Filippo Farina, Claudio Baracchini
Morphological and hemodynamic variations of the circle of Willis (CW) may have an important impact on cerebrovascular events. However, the environmental and genetic influence remains unclear. For this reason we studied the variations and hemodynamic parameters of the CW in twins using transcranial color-coded sonography (TCCS). Sixty-four twins, 19 monozygotic (MZ) and 13 dizygotic (DZ) pairs from the Italian Twin Registry (average age 45.0 ± 13.7 years) underwent TCCS and risk factor assessment. We examined CW morphology and recorded peak systolic velocity (PSV), end-diastolic velocity (EDV) and pulsatility index (PI)...
April 19, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29667933/a-cbct-study-of-the-gravity-induced-movement-in-rotating-rabbits
#8
Jeffrey Barber, Chun-Chien Shieh, William Counter, Jonathan Sykes, Peter Bennett, Verity Ahern, Stéphanie Corde, Soo-Min Heng, Paul White, Michael Jackson, Paul Liu, Paul J Keall, Ilana Feain
Fixed-beam radiotherapy systems with subjects rotating about a longitudinal (horizontal) axis are subject to gravity-induced motion. Limited reports on the degree of this motion, and any deformation, has been reported previously. The purpose of this study is to quantify the degree of anatomical motion caused by rotating a subject around a longitudinal axis, using cone-beam CT (CBCT). In the current study, a purpose-made longitudinal rotating was aligned to a Varian TrueBeam kV imaging system. CBCT images of three live rabbits were acquired at fixed rotational offsets of the cradle...
May 16, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29664450/quantitative-assessment-of-vertebral-artery-anatomy-in-relation-to-cervical-pedicles-surgical-considerations-based-on-regional-differences
#9
Amro Al-Habib, Fahad Albadr, Jehad Ahmed, Abdulrahman Aleissa, Abdullah Al Towim
OBJECTIVE: To quantify the anatomic relationship between the Cervical pedicle screw (CPS), vertebral artery (VA), and related anatomic structures in the Saudi population. METHODS: This retrospective single center study included 50 consecutive patients (35 males) with normal neck findings on computed tomography angiography performed for trauma or vascular evaluation between 2012 and 2014. Radiologic parameters were assessed and correlated with age, weight, height, and body mass index (BMI)...
April 2018: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
https://www.readbyqxmd.com/read/29663370/deformable-torso-phantoms-of-chinese-adults-for-personalized-anatomy-modelling
#10
Hongkai Wang, Xiaobang Sun, Tongning Wu, Congsheng Li, Zhonghua Chen, Meiying Liao, Mengci Li, Wen Yan, Hui Huang, Jia Yang, Ziyu Tan, Libo Hui, Yue Liu, Hang Pan, Yue Qu, Zhaofeng Chen, Liwen Tan, Lijuan Yu, Hongcheng Shi, Li Huo, Yanjun Zhang, Xin Tang, Shaoxiang Zhang, Changjian Liu
In recent years, there has been increasing demand for personalized anatomy modelling for medical and industrial applications, such as ergonomics device development, clinical radiological exposure simulation, biomechanics analysis, and 3D animation character design. In this study, we constructed deformable torso phantoms that can be deformed to match the personal anatomy of Chinese male and female adults. The phantoms were created based on a training set of 79 trunk computed tomography (CT) images (41 males and 38 females) from normal Chinese subjects...
July 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29660745/omental-vascularized-lymph-node-flap-a-radiographic-analysis
#11
Julia A Cook, Sarah E Sasor, Sunil S Tholpady, Michael W Chu
BACKGROUND:  Vascularized lymph node transfer is an increasingly popular option for the treatment of lymphedema. The omental donor site is advantageous for its copious soft tissue, well-defined collateral circulation, and large number of available nodes, without the risk of iatrogenic lymphedema. The purpose of this study is to define the anatomy of the omental flap in the context of vascularized lymph node harvest. METHODS:  Consecutive abdominal computed tomography angiography (CTA) images performed at a single institution over a 1-year period were reviewed...
April 16, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29651794/celiac-trunk-and-common-hepatic-artery-variations-in-children-an-analysis-with-ct-angiography
#12
Emine Caliskan, Turker Acar, Mehmet Ozturk, Zuhal Bayramoglu, Ravza Yilmaz, Filiz Elbuken, Ibrahim Adaletli
BACKGROUND: Understanding the celiac trunk and hepatic artery anatomy is important not only in preventing iatrogenic injuries but also in planning surgical procedures in children. Therefore, the aim of this study is to analyze the prevalence of celiac trunk (CeT) and common hepatic artery (CHA) variations in the pediatric population. MATERIALS AND METHODS: One hundred and seventy-four children (174) who underwent abdominal multidetector computed tomography (MDCT) angiography, either because of trauma or liver transplantation, were analyzed retrospectively...
April 13, 2018: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29616497/malformed-vertebrae-a-clinical-and-imaging-review
#13
REVIEW
Apeksha Chaturvedi, Nina B Klionsky, Umakanthan Nadarajah, Abhishek Chaturvedi, Steven P Meyers
A variety of structural developmental anomalies affect the vertebral column. Malformed vertebrae can arise secondary to errors of vertebral formation, fusion and/or segmentation and developmental variation. Malformations can be simple with little or no clinical consequence, or complex with serious structural and neurologic implications. These anomalies can occasionally mimic acute trauma (bipartite atlas versus Jefferson fracture, butterfly vertebra versus burst fracture), or predispose the affected individual to myelopathy...
April 3, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29616107/awareness-of-hepatic-arterial-variants-is-required-in-surgical-oncology-decision-making-strategy-case-report-and-review-of-literature
#14
Robert Sitarz, Monika Berbecka, Jerzy Mielko, Karol Rawicz-Pruszyński, Grzegorz Staśkiewicz, Ryszard Maciejewski, Wojciech Polkowski
Surgery for the treatment of pancreatic cancer remains the gold standard, however, the identification of the vascular supply of the pancreas and the nearby organs remains a crucial difficulties in a curative resection. During pancreatic head resection for carcinoma dissection of regional arterial vasculature is mandatory. Normal coeliac and hepatic arterial anatomy occurs in ~50-70% of patients and multiple variations have been described. Knowledge of multiple arterial anomalies is essential in hepato-pancreatico-billary surgery to avoid unnecessary complications...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29602651/anatomical-variation-of-the-radial-artery-associated-with-clinically-significant-ischemia
#15
Elizabeth M Polfer, Jennifer M Sabino, Aviram M Giladi, James P Higgins
PURPOSE: The purpose of this retrospective review was to investigate the incidence of radial artery anatomical variations in patients with clinically significant distal upper extremity (UE) ischemia. Available anatomical studies report that high takeoff of the radial artery occurs in up to 15% of the population. We hypothesized that there is a higher incidence of high origin of the radial artery in patients with clinically significant ischemia compared with the reported frequency in the general population...
March 27, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29581798/the-main-anatomical-variations-of-the-pancreatic-duct-system-review-of-the-literature-and-its-importance-in-surgical-practice
#16
REVIEW
Ioannis Dimitriou, Anastasios Katsourakis, Eirini Nikolaidou, George Noussios
Anatomical variations or anomalies of the pancreatic ducts are important in the planning and performance of endoscopic retrograde cholangiopancreatography (ERCP) and surgical procedures of the pancreas. Normal pancreatic duct anatomy occurs in approximately 94.3% of cases, and multiple variations have been described for the remaining 5.7%. The purpose of this study was to review the literature on the pancreatic duct anatomy and to underline its importance in daily invasive endoscopic and surgical practice. Two main databases were searched for suitable articles published from 2000 to 2017, and results concerning more than 8,200 patients were included in the review...
May 2018: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29576928/interindividual-variations-in-foveal-anatomy-and-artifacts-seen-on-inner-retinal-probability-maps-from-spectral-domain-oct-scans-of-the-macula
#17
Carlos Gustavo De Moraes, Hassan Muhammad, Khushmit Kaur, Diane Wang, Robert Ritch, Donald C Hood
Purpose: We tested the hypothesis that variations in foveal morphology can account for artifacts seen on optical coherence tomography (OCT) retinal ganglion cell (RGC) layer probability maps. Methods: A total of 126 healthy subjects were tested with spectral domain (sd) OCT. Thickness and probability maps of the macular RGC plus inner plexiform layer (RGC+) were obtained with customized software. Macular b-scans were analyzed to derive three foveal anatomic parameters: width, depth, and slope...
March 2018: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29573022/exploration-of-male-urethral-sphincter-complex-using-diffusion-tensor-imaging-dti-based-fiber-tracking
#18
Shantanu Sinha, Usha Sinha, Vadim Malis, Valmik Bhargava, Kyoko Sakamoto, Mahadevan Rajasekaran
BACKGROUND: Urinary incontinence is a major clinical problem arising primarily from age-related degenerative changes to the sphincter muscles. However, the precise anatomy of the normal male sphincter muscles has yet to be established. Diffusion tensor imaging (DTI) may offer a unique insight into muscle microstructure and fiber architecture. PURPOSE: To explore the anatomy of the urethral sphincter muscles pertinent to urinary continence function using DT-MRI. STUDY TYPE: Prospective cohort study...
March 23, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29557490/anatomy-and-injuries-of-the-pediatric-wrist-beyond-the-basics
#19
REVIEW
Ezekiel Maloney, Andrew M Zbojniewicz, Jie Nguyen, Yu Luo, Mahesh M Thapa
Ligamentous injuries of the pediatric wrist, once thought to be relatively uncommon, are increasingly recognized in the context of acute high-energy mechanism trauma and chronic axial loading, including those encountered in both recreational and high-performance competitive sports. Recent advances in MR-based techniques for imaging the pediatric wrist allow for sensitive identification of these often radiographically occult injuries. Detailed knowledge of the intrinsic and supportive extrinsic ligamentous complexes, as well as normal developmental anatomy and congenital variation, are essential to accurately diagnose injuries to these structures...
June 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29543678/clinical-notes-on-chiari-malformation
#20
Rajani Singh, Rajnish Arora, Raj Kumar
Chiari malformations (CMs) are variant structural setup of cerebellum and brain stem at the craniovertebral junction. Normally the cerebellum and parts of the brain stem lie above the foramen magnum. When the part of the cerebellum and/or brainstem protrudes into the upper spinal canal through foramen magnum, it is defined as CM. Chiari malformations may develop when part of the skull is smaller than normal or misshapen, due to which the cerebellum herniates into spinal canal through foramen magnum. This compresses the cerebellum and brainstem affecting functions controlled by these parts and blocks the flow of cerebrospinal fluid that surrounds and cushions the brain and spinal cord...
March 14, 2018: Journal of Craniofacial Surgery
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