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surgical and radiological anatomy

Hisanaga Horie, Koji Koinuma, Homare Ito, Ai Sadatomo, Daishi Naoi, Yoshihiko Kono, Yoshiyuki Inoue, Mitsuaki Morimoto, Makiko Tahara, Alan K Lefor, Naohiro Sata, Takahiro Sasaki, Hideharu Sugimoto
INTRODUCTION: Laparoscopic lateral pelvic lymph node dissection (LPLD) is technically challenging because of the complicated anatomy of the pelvic wall. To overcome this difficulty, we introduced preoperative 3-D simulation. The aim of the study is to investigate the usefulness of preoperative 3-D simulation for the safe conduct of laparoscopic LPLD for rectal cancer. METHODS: After undergoing colonoscopy, patients were brought to the radiology suite where multi-detector row CT was performed...
March 12, 2018: Asian Journal of Endoscopic Surgery
Ulrik Nikolaj Ascanius Felding
Isolated fractures of the orbital floor or medial wall are often referred to as blowout fractures (BOFs). Debilitating double vision and aesthetic deformity may affect the patients' quality of life and daily living skills, for instance, working or driving a car. The management of blowout fractures is, however, challenging, since not all fractures demand surgery. Some patients may have symptoms which subside, or may never develop symptoms. Due to a lack of evidence, there are still considerable differences in opinion on the criteria for surgery...
March 2018: Danish Medical Journal
Zhen Chen, Hongzhi Zhao, Xiangyu Sun, Zhenyu Wang
BACKGROUND: Whilst laparoscopic repair is the most common surgical procedure for the treatment of large hiatal hernias, knowledge of long-term outcomes (>10 years) is scarce. The aim of this study was to evaluate the long-term results following this approach, in particular the hernia recurrence rate and the impact of repair on quality of life (QoL). METHODS: Patients were identified from a prospective database. A standardized questionnaire was used to assess symptoms and a barium swallow radiograph was performed to determine anatomy...
March 6, 2018: ANZ Journal of Surgery
Biljana Milatović, Jovica Saponjski, Haris Huseinagić, Mirza Moranjkić, Svetlana Milošević Medenica, Ivan Marinković, Igor Nikolić, Slobodan Marinkovic
BACKGROUND: Identification and anatomic features of the feeding arteries of the arteriovenous malformations (AVMs) is very important due to neurologic, radiologic, and surgical reasons. MATERIALS AND METHODS: Seventy-seven patients with AVMs were examined by using a digital subtraction angiographic (DSA) and computerized tomographic (CT) examination, including 3D reconstruction of the brain vessels. In addition, the arteries of 4 human brain stems and 8 cerebral hemispheres were microdissected...
March 3, 2018: Folia Morphologica (Warsz)
Schiaffino Simone, Massone Elena, Gristina Licia, Fregatti Piero, Rescinito Giuseppe, Alessandro Villa, Friedman Daniele, Calabrese Massimo
OBJECTIVE: To report the results of the conservative management with mammographic checks of patients with ADH diagnosed by vacuum assisted breast biopsy (VAB), without residual calcifications. METHODS: The authors accessed the institutional database of radiological, surgical and pathologic anatomy. Inclusion criteria were: ADH diagnosed by VAB on a single group of microcalcifications, without residual post-procedure; follow-up at least of 12 months. Exclusion criteria were the presence of personal history of breast cancer or other high risk lesions; association with other synchronous lesions, both more and less advanced proliferative lesions...
February 16, 2018: British Journal of Radiology
Marco Chincarini, Giulia A Zamboni, Roberto Pozzi Mucelli
OBJECTIVES: (1) To illustrate and describe the main types of pancreatic surgery; (2) to discuss the normal findings after pancreatic surgery; (3) to review the main complications and their radiological findings. BACKGROUND: Despite the decreased postoperative mortality, morbidity still remains high resulting in longer hospitalisations and greater costs. Imaging findings following major pancreatic resections can be broadly divided into "normal postoperative alterations" and real complications...
February 15, 2018: Insights Into Imaging
Alexander P Marston, Glenn Merritt, Jonathan M Morris, Shelagh A Cofer
OBJECTIVES: The suprazygomatic maxillary nerve block is associated with improved post-operative pain management after select craniofacial surgical procedures. This study's objective is to better define the impact of pediatric facial skeletal growth on techniques for accessing the pterygopalatine fossa (PPF). METHODS: Pediatric patients with prior thin-slice maxillofacial computed tomography imaging were identified in an institutional radiology database. Aquarius image-processing software (Ver...
February 2018: International Journal of Pediatric Otorhinolaryngology
Caecilia Charbonnier, Sylvain Chagué, Bart Kevelham, Delphine Preissmann, Frank C Kolo, Olivier Rime, Alexandre Lädermann
PURPOSE: We present a computer-assisted planning solution "ArthroPlanner" for acromioplasty based on 3D anatomical models, computed tomography and joint kinematic simulations. METHODS: In addition to a standard static clinical evaluation (anamnesis, radiological examination), the software provides a dynamic assessment of the shoulder joint by computing in real time the joint kinematics from a database of activities of daily living. During motion, the precise bone resection (location and amount) is computed based on detected subacromial impingements, providing surgeons with precise information about the surgical procedure...
February 9, 2018: International Journal of Computer Assisted Radiology and Surgery
Jin Chuan Sun, Hai Song Yang, Jiangang Shi, Wang Yuan, Xi Ming Xu, Guo Dong Shi, Lian Shun Jia
OBJECTIVE: This study used uncinate process (UP) base as the landmark to measure the various distances of the interested anatomic structures, in order to improve the practicality of anterior controllable antedisplacement and fusion (ACAF) for ossification of the posterior longitudinal ligament (OPLL). METHODS: Computed tomographic (CT) scan data of twenty OPLL patients were studied. The authors investigated the base distance of UPs, transverse foramen (TF) to UP base, pedicle to UP base, posterior to anterior UP, maximal width of OPLL, and width of vertebrae-OPLL complex (VOC)...
February 5, 2018: World Neurosurgery
Fabio Garofalo, Radu Pescarus, Ronald Denis, Henri Atlas, Pierre Garneau, Michel Philie, Karl Sayegh
Laparoscopic sleeve gastrectomy is one of the most common bariatric procedures worldwide. It has recently gained in popularity because of a low complication rate, satisfactory resolution of comorbidities, and excellent weight loss outcome. This article reviews the surgical technique, expected postsurgical imaging appearance, and imaging findings of common complications after laparoscopic sleeve gastrectomy. Understanding of the surgical technique of laparoscopic sleeve gastrectomy and of the normal postsurgical anatomy allows accurate interpretation of imaging findings in cases of insufficient weight loss, weight regain, and postsurgical complications...
January 27, 2018: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
Andreina Pagini, Massimiliano Bassi, Daniele Diso, Michele Anzidei, Sara Mantovani, Camilla Poggi, Federico Venuta, Marco Anile
BACKGROUND: Vena cava anomalies are a rare group of anatomical variations due to an incorrect development of the superior or inferior vena cava during fetal life. They generally show no clinical relevance and the diagnosis is done due to the association with congenital heart diseases in most of cases. However, preoperative identification of these anomalies is mandatory for surgeons to proper surgical planning. If not recognized, lethal complications may occur, as already reported in literature...
February 1, 2018: Journal of Cardiothoracic Surgery
Qi Hui Bernice Heng, Dinesh Chinchure, Reyaz Moiz Singaporewalla
Hydrocoele of the canal of Nuck is a rare condition in adult women caused by a failure of complete obliteration of the canal of Nuck. It may be likened to a patent processus vaginalis in men. In most cases, the diagnosis is made during surgery as it is often mistaken for an inguinal hernia. We report a case where the diagnosis of this condition was made preoperatively on imaging. The salient anatomy, clinical features, radiological images and surgical management are discussed and the medical literature reviewed...
January 2018: Singapore Medical Journal
João Arthur Brunhara, Paulo Renato Marcelo Moscardi, Marcos Figueiredo Mello, Hiury Silva Andrade, Paulo Afonso Carvalho, Bruno Nicolino Cezarino, Francisco Tibor Dénes, Roberto Iglesias Lopes
OBJECTIVE: to assess the feasibility and outcomes of laparoscopic pyeloplasty in children with complex ureteropelvic junction obstruction (UPJO) and compare to children with iso-lated UPJO without associated urinary tract abnormalities. MATERIAL AND METHODS: Medical records of 82 consecutive children submitted to transperitoneal laparoscopic pyeloplasty in a 12-year period were reviewed. Eleven cases were con-sidered complex, consisting of atypical anatomy including horseshoe kidneys in 6 patients, pelvic kidneys in 3 patients, and a duplex collecting system in 2 patients...
January 26, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Francesco Doglietto, Jimmy Qiu, Mayoorendra Ravichandiran, Ivan Radovanovic, Francesco Belotti, Anne Agur, Gelareh Zadeh, Marco Maria Fontanella, Walter Kucharczyk, Fred Gentili
AIM: To describe the development and validation of a novel neuronavigation-based method, which allows the quantification of the anatomical features that define an approach, as well as real-time visualization of the surgical pyramid. METHODS: The method was initially developed with commercially-available hardware for coordinate collection (a digitizer and a frameless navigation system) and software for volume rendering; dedicated neuronavigation software (ApproachViewer, part of GTx-UHN) was then developed...
December 26, 2017: World Journal of Methodology
Laszlo Barany, Gabor Baksa, Patonay Lajos, Gergely Racz, Oliver Ganslandt, Michael Buchfelder, Peter Kurucz
BACKGROUND: The foramen of Luschka is a natural aperture between the fourth ventricle and the subarachnoid space at the cerebellopontine angle (CPA). Membranous closure of this foramen is referred to as primary obstruction. The available information about this variant and its role in the development of the cysts of the posterior fossa are contradictory in the literature. METHODS: Sixty-one formalin-fixed human brains (122 foramina) were involved in this study. Both the macroscopic and the histological features of the obstructed foramina were examined...
January 12, 2018: World Neurosurgery
Noritaka Komune, Satoshi Matsuo, Koichi Miki, Yojiro Akagi, Ryota Kurogi, Koji Iihara, Takashi Nakagawa
OBJECTIVE: The endoscopic endonasal approach to the anatomically complex lateral skull base presents technical challenges. The use of the eustachian tube as a landmark to identify the petrous internal carotid artery has recently been reported, and this study aims to define the anatomic relationship between the eustachian tube and its surrounding structures using cadaveric dissection and radiologic analysis. METHODS: To clarify the relationship of the eustachian tube with its surrounding structures, we performed endoscopic and microscopic dissection of 4 adult cadaveric heads and analyzed computed topography scans from 20 patients...
January 8, 2018: World Neurosurgery
Mohammad F Ali, Rani Modayil, Krishna C Gurram, Collin Brathwaite, David Friedel, Stavros Stavropoulos
BACKGROUND: Deep enteroscopy-assisted ERCP (DEA-ERCP) in post-bariatric Roux-en-Y (RY) anatomy is challenging. Laparoscopy-assisted ERCP (LA-ERCP) or EUS-directed transgastric ERCP (EDGE) are technically easier and faster, but are more invasive and morbid procedures. Therefore, we have used DEA-ERCP as our first-line approach, reserving EDGE and LA-ERCP for cases in which adjunctive techniques that cannot be performed through an enteroscope are required (eg, EUS-FNA, SO manometry), or DEA-ERCP failures...
January 6, 2018: Gastrointestinal Endoscopy
Ashley I Huppe, Anita K Mehta, Rachel F Brem
Molecular breast imaging (MBI), also called breast-specific gamma imaging (BSGI), has been an integral component of our breast imaging practice for over a decade. Unlike mammography and ultrasound that are based on anatomy, MBI is a physiologic approach to breast cancer detection. MBI detects additional foci of occult breast cancer in 9.0% of women with newly diagnosed breast cancer, has a high sensitivity for detecting high-risk lesions, and detects 98% of invasive breast cancer and 91.0% of ductal carcinoma in situ...
February 2018: Seminars in Ultrasound, CT, and MR
Elizabeth Perica, Zhonghua Sun
Background: Recently, three-dimensional (3D) printing has shown great interest in medicine, and 3D printed models may be rendered as part of the pre-surgical planning process in order to better understand the complexities of an individual's anatomy. The aim of this study is to investigate the feasibility of utilising 3D printed liver models as clinical tools in pre-operative planning for resectable hepatocellular carcinoma (HCC) lesions. Methods: High-resolution contrast-enhanced computed tomography (CT) images were acquired and utilized to generate a patient-specific 3D printed liver model...
December 2017: Quantitative Imaging in Medicine and Surgery
Georgios P Skandalakis, Stefanos Korfias, Aristotelis V Kalyvas, Christos Anagnostopoulos, Damianos E Sakas
Background: Pseudoaneurysms of the occipital artery (OA) are extremely rare and can occur following head trauma or iatrogenic injury; OA anatomy seems to play a crucial role in their pathogenesis. Case Description: This report describes the case of a 76-year-old patient with a giant OA pseudoaneurysm secondary to a head injury the patient had sustained 1 month earlier. After radiological confirmation via ultrasonography (US) and computed tomography angiography (CTA), the patient underwent surgery for resection of the lesion...
2017: Surgical Neurology International
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