نتایج جستجو برای: sigmoid

تعداد نتایج: 14966  

2017
Alana Paul

This study is aimed at assessing the reliability of morphometric measurements performed on the frontal sinus, nasal septum and maxillary sinus in personal identification using three dimensional Cone Beam Computed Tomography. This study propounds the significance of combined use of all three particularly maxillary sinus and nasal septum pattern in individual identification. This retrospective st...

Journal: :Signal, Image and Video Processing 2011
Abdourrahmane M. Atto Dominique Pastor Grégoire Mercier

This work addresses the unification of some basic functions and thresholds used in nonparametric estimation of signals by shrinkage in the wavelet domain. The Soft and Hard thresholding functions are presented as degenerate smooth sigmoid based shrinkage functions. The shrinkage achieved by this new family of sigmoid based functions is then shown to be equivalent to a regularisation of wavelet ...

2013
Maria Antonietta Mazzei Nevada Cioffi Squitieri Susanna Guerrini Amato Antonio Stabile Ianora Lucio Cagini Luca Macarini Melchiore Giganti Luca Volterrani

Acute diverticulitis (AD) results from inflammation of a colonic diverticulum. It is the most common cause of acute left lower-quadrant pain in adults and represents a common reason for acute hospitalization, as it affects over half of the population over 65 years with a prevalence that increases with age. Although 85% of colonic diverticulitis will recover with a nonoperative treatment, some p...

1999
Katsunari Shibata Koji Ito

Recently RBF(Radial Basis Function)-based networks have been widely used because they can learn a strong non-linear function faster and more easily by their local learning characteristics. However, it has no hidden units that can represent some global information. Accordingly even if the knowledge obtained through the previous sets of learning is utilized effectively in the present learning, th...

Journal: :BMJ case reports 2014
Khalil ElGendy Amro Salem

To cite: ElGendy K, Salem A. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2014207106 DESCRIPTION A 60-year-old woman presented with a 2-month history of bleeding per rectum and recent change in bowel habits in the form of diarrhoea. The patient has no comorbidities and no family history of colon cancer. Abdominal examination was insignificant aside from a mass ...

Journal: :Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) 2017

2016
Paweł Bożek Ewa Kluczewska Maciej Misiołek Wojciech Ścierski Grażyna Lisowska

BACKGROUND The aim of the study was to determine the prevalence of petrosquamosal sinus (PSS) and other temporal bone (TB) anatomical variations in various patients using high-resolution computed tomography (CT). MATERIAL AND METHODS We reviewed clinical and consecutively obtained CT data for 276 TBs of 138 patients. The incidence of TB anatomical variations was compared among patients with rad...

2015
Seung-Hyun Lee Byung-Kwon Ahn Sung-Uhn Baek

Sigmoid volvulus is one of the three most common causes of acute colonic obstruction. Predisposing factors include chronic constipation, adhesion from a prior abdominal surgery, and megacolon. However, concomitant presentation of volvulus of the sigmoid colon and rectal cancer is extremely rare. We report a case of a 50-year-old woman with coexisting volvulus of the sigmoid colon and rectal can...

Journal: :Nihon Hinyokika Gakkai zasshi. The japanese journal of urology 1991
N Nishimura H Suzu Y Yushita S Yamashita H Kanetake Y Saito T Sakuragi

From 1972 to 1989, 21 patients underwent bladder replacement with sigmoid colon after cystectomy for bladder cancer. A portion of sigmoid colon (about 15 to 20 cm) was isolated and anastomosed to the urethral stump. Then the ureters were implanted in the sigmoid colon via submucosal tunnels. There were 20 men and 1 woman, ranging in age from 24 to 71 years (average 51 years). Preoperative inves...

2012
Enzo Fabrício Ribeiro Nascimento Michelle Chechter Fábio Piovezan Fonte Nara Puls Juliana Santos Valenciano Cláudio Luciano Penna Fernandes Filho Ronaldo Nonose Crhistiny Emmanuelle Gabriel Bonassa Carlos Augusto Real Martinez

Colonic obstruction due to sigmoid colon volvulus during pregnancy is a rare but complication with significant maternal and fetal mortality. We describe a case of sigmoid volvulus in a patient with 33 weeks of gestation that developed complete necrosis of the left colon. Case. 27-year-old woman was admitted with 3 days of abdominal distention, vomit, and the stoppage of the passage of gases and...

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