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Abdominopelvic ct

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https://www.readbyqxmd.com/read/30324392/prospective-evaluation-of-ultra-low-dose-contrast-enhanced-100-kv-abdominal-computed-tomography-with-tin-filter-effect-on-radiation-dose-reduction-and-image-quality-with-a-third-generation-dual-source-ct-system
#1
Pierre Leyendecker, Vanina Faucher, Aissam Labani, Vincent Noblet, François Lefebvre, Paul Magotteaux, Mickaël Ohana, Catherine Roy
OBJECTIVES: To investigate the radiation dose exposure, image quality, and diagnostic performance of enhanced 100-kVp abdominopelvic single-energy CT protocol with tin filter (TF). METHODS: Ninety-three consecutive patients referred for a single-phase enhanced abdominopelvic CT were prospectively included after informed consent. They underwent in addition to a standard protocol (SP) an acquisition with TF. Both examinations were performed on a third-generation dual-source CT system (DSCT), in single energy, using automatic tube current modulation, identical pitch, and identical level of iterative reconstruction...
October 15, 2018: European Radiology
https://www.readbyqxmd.com/read/30301875/non-surgical-management-of-colo-colonic-intussusception-in-patients-with-hereditary-angioedema
#2
Laura C Figueroa-Diaz, Felipe G Rodriguez-Ruiz, Manuel Betancourt-Torres, Ivonne L Ojeda-Boscana, Jose A Lara
BACKGROUND Hereditary angioedema (HAE) is an autosomal disease caused either by deficiency or presence of a non-functioning C1 inhibitor. The lack or non-functionality of said inhibitors leads to activation of an inflammatory cascade, which result in cutaneous and mucosal edema. Most patients with HAE present with either cutaneous, laryngeal/pharyngeal, or gastrointestinal exacerbations. An uncommon gastrointestinal manifestation of HAE is an intussusception, which in most cases require invasive/surgical management...
October 10, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/30301770/rare-cause-of-rectal-stenosis-in-a-patient-with-long-term-use-of-infliximab-and-mercaptopurine-for-ulcerative-colitis
#3
Nassim Hammoudi, Charlotte Gardair, My-Linh Tran-Minh, Matthieu Allez, Jean-Marc Gornet
QUESTION: A 58-year-old, non-smoker male patient with no family history was followed up since 2002 for ulcerative colitis (UC) located in the rectosigmoid. He was initially treated by salicylates alone until November 2008. Mercaptopurine was started in August 2009 for steroid dependence with primary failure despite adequate 6 thioguanine nucleotides (6 TGN) level. He was included in February 2010 in the PURSUIT trial testing Golimumab with only partial response. A combination therapy with Mercaptopurine and Infliximab was then started in December 2010 with a long-term clinical, biological and endoscopic steroid-free remission...
October 9, 2018: Gut
https://www.readbyqxmd.com/read/30292502/assessment-of-isocenter-alignment-during-ct-colonography-implications-for-clinical-practice
#4
K L Olden, R G Kavanagh, K James, M Twomey, F Moloney, N Moore, K Carey, K P Murphy, T M Grey, P Nicholson, R Chopra, M M Maher, O J O'Connor
INTRODUCTION: Optimization of image quality and patient radiation dose is achieved in part by positioning the patient at the isocenter of the CT gantry. The aim of this study was to establish whether there was increased isocenter misalignment (IM) in CT colonography (CTC) scans by comparing patient position during the prone part of a CTC to patient position during renal stone protocol CT (CT-KUB) and patient position during the supine part of a CTC to patient position during abdominopelvic CT (CT-AP)...
November 2018: Radiography
https://www.readbyqxmd.com/read/30283801/rectal-perforation-by-inadvertent-ingestion-of-a-blister-pack-a-case-report-and-review-of-literature
#5
Francesco Fleres, Antonio Ieni, Edoardo Saladino, Giuseppe Speciale, Michele Aspromonte, Antonio Cannaò, Antonio Macrì
The accidental ingestion of a foreign body (FB) is a relatively common condition. In the present study, we report a peculiar case of rectal perforation, the first to our knowledge, caused by the inadvertent ingestion of a blister pill pack. The aim of this report is to illustrate the difficulties of the case from a diagnostic and therapeutic viewpoint as well as its unusual presentation. A 75-year-old woman, mentally impaired, arrived at our emergency department in critical condition. The computed tomography scan revealed a substantial abdominopelvic peritoneal effusion and free perigastric air...
September 26, 2018: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/30270701/value-and-necessity-of-pelvic-ct-in-gastric-cancer-staging-an-observational-study
#6
Jing Li, Yang Tan, Die Zhang, Jiawei Li, Shuang Shen, Yebin Jiang, Jianlin Wu
BACKGROUND: The value and necessity of pelvic computed tomography (CT) examination in gastric cancer (GC) staging is unknown and the recommendations are unclear in guidelines. The objective of this study was to evaluate the value and necessity of pelvic CT in routine GC staging. METHODS: We reviewed the medical records of GC patients proved by endoscopic biopsy who received abdominopelvic CT examination before treatments at our institution from January 2013 through July 2017...
September 29, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/30269470/an-intrarenal-adrenocortical-carcinoma-arising-in-an-adrenal-rest
#7
Ji Hee Lee, Nam Hoon Cho, Young Deuk Choi
We describe a case of a 61-year-old Korean man who was diagnosed with renal cell carcinoma that was discovered on abdominopelvic computed tomography obtained after the patient complained of back pain. A radical nephrectomy was performed, and the surgical specimen showed a relatively well-circumscribed and yellowish lobulated hard mass. Microscopically, the tumor showed sheets and nests of hypercellular pleomorphic cells with thick fibrous septation, frequent mitoses, and areas of adrenal cortical-like tissue...
October 1, 2018: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/30259226/abdominopelvic-bleed-rate-on-admission-ct-correlates-with-mortality-and-transfusion-needs-in-the-setting-of-blunt-pelvic-fractures-a-single-institution-pilot-study
#8
William Borror, Greg E Gaski, Scott Steenburg
PURPOSE: The objectives of this study were to calculate the total volumetric rate of abdominopelvic bleeding in patients with acute pelvic fractures and examine the relationships between the bleeding rate, patient outcomes, and required patient interventions. METHODS: This was a retrospective cohort study which included 29 patients from a 4-year period (May 2013 to May 2017). Patients with acute pelvic fractures and active bleeding detected on CT with two phases of imaging were included...
September 26, 2018: Emergency Radiology
https://www.readbyqxmd.com/read/30229270/quantitative-assessment-of-mesorectal-fat-new-prognostic-biomarker-in-patients-with-mid-to-lower-rectal-cancer
#9
Jiyoung Yoon, Yong Eun Chung, Joon Seok Lim, Myeong-Jin Kim
OBJECTIVES: To investigate the impact of mesorectal fat area (MFA) on oncologic outcomes in patients with mid-to-lower rectal cancer who received curative-intent surgery. METHODS: Patients with mid-to-lower rectal cancer who underwent preoperative abdominopelvic computed tomography (CT) and curative-intent surgery in 2011 were divided into two groups by tumour recurrence (group A) or no recurrence (group B) during a 5-year follow-up. Visceral fat area (VFA) and MFA were measured on preoperative CT and cutoff values were calculated using the Youden index...
September 18, 2018: European Radiology
https://www.readbyqxmd.com/read/30197245/acute-appendicitis-factors-associated-with-inconclusive-ultrasound-study-and-the-need-for-additional-computed-tomography
#10
M Pelin, B Paquette, L Revel, M Landecy, S Bouveresse, E Delabrousse
PURPOSE: To identify variables associated with inconclusive ultrasound examination and the need for further abdominopelvic computed tomography (CT) examination for the diagnosis of acute appendicitis. MATERIALS AND METHODS: A total of 105 adult patients with acute appendicitis were included. There were 55 patients (38 men, 17 women; mean age, 23±9 [SD] years; range: 15-58 years) with a diagnosis of acute appendicitis using ultrasound alone and 50 patients (30 men, 20 women; mean age, 31±14 [SD] years; range: 16-83 years) who required further CT...
September 6, 2018: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/30195334/inflammatory-myofibroblastic-tumor-of-the-pleura-with-adjacent-chest-wall-invasion-and-metastasis-to-the-kidney-a-case-report
#11
Yong-Sub Na, Sang-Gon Park
BACKGROUND: Inflammatory myofibroblastic tumor is a rare benign neoplasm that frequently involves the lung and abdominopelvic region, and is found mainly in children and young adults. Inflammatory myofibroblastic tumor tends to be locally invasive or recurrent, and rarely metastasizes. CASE PRESENTATION: A 76-year-old Korean man presented with a history of upper back pain for 2 months and motor weakness in both lower extremities for 2 days. Contrast-enhanced computed tomography of his chest and abdomen showed a large heterogeneous pleural mass involving the right fifth rib and vertebral body and a mass infiltrating the right renal hilum...
September 9, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/30186137/searching-for-the-culprit-metastases-from-a-cancer-of-unknown-primary
#12
Rita Dorantes-Heredia, Daniel Motola-Kuba, Jose Manuel Ruiz-Morales, Wallace Rafael A Muñoz-Castañeda, Carolina Vega-Ochoa, Roberto De la Peña
We report a case of metastases from a cancer of unknown primary whose primary site could not be identified during the appropriate pretreatment evaluation. The patient was a 58-year-old woman with a history of passive smoking and with no history of cancer in the family. Her current condition started with asthenia, adynamia, and pallor, followed by palpitations. An abdominopelvic computed tomography (CT) scan was performed, showing multiple osteolytic lesions distributed in all bone structures and axillary adenopathy on the left side...
May 2018: Case Reports in Oncology
https://www.readbyqxmd.com/read/30153152/cervical-cancer-presenting-as-an-omental-cake
#13
Fevziye Canbaz, Handan Celik, Mehmet Kefeli, Migraci Tosun
In women, peritoneal carcinomatosis usually originates from primary ovarian cancer. We report a case of omental cake as the initial presentation of a cervical cancer, which is extremely rare for this disease. F-FDG PET/CT imaging demonstrated diffuse hypermetabolic abdominopelvic peritoneal carcinomatosis originating from cervical cancer that was confirmed by histopathologically.
November 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/30147978/clear-cell-carcinoma-arising-in-vulvar-endometriosis
#14
Pranom Buppasiri, Pilaiwan Kleebkaow, Chantip Tharanon, Apiwat Aue-Aungkul, Chumnan Kietpeerakool
We report a case of vulvar clear cell adenocarcinoma in a woman presenting with a lump and pain in the right side of the labia majora. Three years prior to this visit, she underwent a total abdominal hysterectomy with bilateral salpingooophorectomy and excision of a labial mass. Pathological examination revealed adenomyosis and multiple leiomyomas in the uterus, endometriotic cysts in both ovaries, and foci of atypical endometriosis in the labial mass. The results of an incision biopsy performed before referral indicted only apocrine hidrocystoma...
2018: Case Reports in Pathology
https://www.readbyqxmd.com/read/30135970/combined-application-of-virtual-monoenergetic-high-kev-images-and-the-orthopedic-metal-artifact-reduction-algorithm-o-mar-effect-on-image-quality
#15
Junghoan Park, Se Hyung Kim, Joon Koo Han
PURPOSE: To determine whether there is any additional metal artifact reduction when virtual monochromatic images (VMI) and metal artifact reduction for orthopedic implants (O-MAR) are applied together compared to their separate application in both phantom and clinical abdominopelvic CT studies. METHODS: An agar phantom containing a spinal prosthesis was scanned using a dual-layer, energy CT scanner (IQon, Philips Healthcare), and reconstructed with the filtered back-projection algorithm without O-MAR (FBP), filtered back-projection algorithm with O-MAR (O-MAR), VMI140 without O-MAR (VMI140 ), and VMI140 with O-MAR (VMI140  + O-MAR)...
August 22, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/30124775/opportunistic-measurement-of-skeletal-muscle-size-and-muscle-attenuation-on-computed-tomography-predicts-one-year-mortality-in-medicare-patients
#16
Leon Lenchik, Kristin M Lenoir, Josh Tan, Robert D Boutin, Kathryn E Callahan, Stephen B Kritchevsky, Brian J Wells
Background: Opportunistic assessment of sarcopenia on CT examinations is becoming increasingly common. This study aimed to determine relationships between CT-measured skeletal muscle size and attenuation with one-year risk of mortality in older adults enrolled in a Medicare Shared Savings Program (MSSP). Methods: Relationships between skeletal muscle metrics and all-cause mortality were determined in 436 participants (52% women, mean age 75 years) who had abdominopelvic CT examinations...
August 16, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/30094779/preoperative-liver-registration-for-augmented-monocular-laparoscopy-using-backward-forward-biomechanical-simulation
#17
Erol Özgür, Bongjin Koo, Bertrand Le Roy, Emmanuel Buc, Adrien Bartoli
PURPOSE: Augmented reality for monocular laparoscopy from a preoperative volume such as CT is achieved in two steps. The first step is to segment the organ in the preoperative volume and reconstruct its 3D model. The second step is to register the preoperative 3D model to an initial intraoperative laparoscopy image. To date, there does not exist an automatic initial registration method to solve the second step for the liver in the de facto operating room conditions of monocular laparoscopy...
October 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/30084109/impact-of-low-kvp-scan-technique-on-oral-contrast-density-at-abdominopelvic-ct
#18
Douglas H Sheafor, Mark D Kovacs, Philip Burchett, Melissa M Picard, Brenton Davis, Andrew D Hardie
PURPOSE: To assess quantitative and qualitative effects of kVp on oral contrast density. MATERIALS AND METHODS: Three readers retrospectively reviewed 100 CT scans performed at a range of high- and low-energy settings, independently determining their preferred window and level settings for evaluation of the oral-contrast-opacified bowel. Contrast density was also assessed quantitatively in the stomach, jejunum, and ileum. Subsequently, a range of oral contrast dilutions were imaged at varying kVp's in a commercially available CIRS tissue equivalent phantom model...
August 6, 2018: La Radiologia Medica
https://www.readbyqxmd.com/read/30079287/rare-abdominopelvic-actinomycosis-causing-an-intestinal-band-obstruction-and-mimicking-an-ovarian-malignancy
#19
Sakthivel Chinnakkulam Kandhasamy, Byshetty Rajendar, Ashok Kumar Sahoo, Rajesh Nachiappa Ganesh, Mangala Goneppanavar, Vishnu Prasad Nelamangala Ramakrishnaiah
Actinomyces israelii, a commensal of the bronchial and gastrointestinal tracts, is responsible for the majority of actinomycostic infections in humans. Actinomycosis has widely varying clinical presentations ranging from asymptomatic states to infiltrative mass lesions that mimic malignant abdominopelvic disease. Described as one of the most misdiagnosed diseases, actinomycosis poses challenges to accurate preoperative diagnosis. A 67-year-old woman with no significant medical history presented with features of acute intestinal obstruction...
May 31, 2018: Curēus
https://www.readbyqxmd.com/read/30075951/screening-cancer-after-venous-thromboembolism-how-many-abnormal-tests-before-diagnosing-cancer-an-analysis-of-practice
#20
Cécile Duvillard, Elodie De Magalhaes, Nathalie Moulin, Sandrine Accassat, Patrick Mismetti, Laurent Bertoletti
INTRODUCTION: Since Trousseau, we knows that venous thrombemboembolism (VTE) can reveal occult cancer. Different strategies of cancer screening have been evaluated: they are often time-consuming, cause stress and anxiety, and frequently require second-look examinations (due to the risk of false positives), with ultimately a very low yield (about 5%). We evaluated the number of suspect cancer tests before reporting them to the number of cancers finally diagnosed, after a VTE, in the setting of practice's analysis...
July 2018: La Presse Médicale
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