Diagnostic value of multi-slice spiral CT (MSCT) combined with digestive tract angiography in gastric fundus cardia carcinoma.

PURPOSE: To evaluate the diagnostic value of multi-slice spiral CT (MSCT) combined with digestive tract angiography in patients with gastric fundus cardia carcinoma. METHODS: A total of 185 patients with suspected gastric fundus cardia carcinoma admitted in our hospital were collected. Among them, 93 patients were examined with MSCT combined with digestive tract angiography and were enrolled in the research group. Another 92 patients examined by MSCT alone comprised the control group. The diagnostic value of MSCT combined with digestive tract angiography in patients with gastric fundus cardia carcinoma was investigated. 185 patients were diagnosed by pathological examination and 166 had gastric fundus cardia carcinoma, with 84 patients in the research group, and 84 patients in the control group. Fifty nine patients with gastric fundus cardia carcinoma in the control group were diagnosed by MSCT. RESULTS: There were significant differences compared with pathological diagnosis (p<0.05). Eighty-two patients with gastric fundus cardia carcinoma in the research group were diagnosed by MSCT combined with digestive tract angiography. There were no significant differences compared with pathological diagnosis (p>0.05). Sensitivity, specificity and accuracy of the research group were significantly higher than those of the control group (p<0.05). The detectable rate in imaging results of the research group was higher than that of the control group (p<0.05). CONCLUSION: MSCT combined with digestive tract angiography is more accurate than single MSCT in the diagnosis of gastric fundus cardia carcinoma, which can effectively reduce the misdiagnosis and missed diagnosis and is worthy of clinical promotion.

Genetic architecture of 11 organ traits derived from abdominal MRI using deep learning.

Cardiometabolic diseases are an increasing global health burden. While socioeconomic, environmental, behavioural, and genetic risk factors have been identified, a better understanding of the underlying mechanisms is required to develop more effective interventions. Magnetic resonance imaging (MRI) has been used to assess organ health, but biobank-scale studies are still in their infancy. Using over 38,000 abdominal MRI scans in the UK Biobank, we used deep learning to quantify volume, fat, and iron in seven organs and tissues, and demonstrate that imaging-derived phenotypes reflect health status. We show that these traits have a substantial heritable component (8-44%) and identify 93 independent genome-wide significant associations, including four associations with liver traits that have not previously been reported. Our work demonstrates the tractability of deep learning to systematically quantify health parameters from high-throughput MRI across a range of organs and tissues, and use the largest-ever study of its kind to generate new insights into the genetic architecture of these traits.

Demography and Mortality of Body Packers; an Extended Experience from a Referral Center.

BACKGROUND: The incidence of smuggling and illegal transport of substances by internal concealment, also known as body packing, is increasing. The clinical approach to body packers has changed significantly over the past two decades. In addition, the mortality of body packers is an important issue in patient management. The purpose of the current study is to determine the statistics and mortality related to body packing. METHODS: In this cross-sectional study, all body packer patients who referred to Loghman Hakim hospital were evaluated from 2010 to 2017. Demographic characteristics, findings of clinical imaging, treatment, and outcome of the patients were recorded. The data were analyzed using SPSS version 21. RESULTS: A total of 303 patients were enrolled in the study after the diagnosis of body packing by abdominal CT scanning without contrast. Conservative treatment including whole bowel irrigation (WBI) accompanied by close monitoring was done for 78% (n = 236) of patients; moreover, 26 patients (8.5%) underwent surgery after WBI, and 41 patients (13.5%) underwent surgery without bowel irrigation. Mortality was observed in eight patients (2.7%) five of whom (62.5%) died before surgery and had the clinical manifestation of crystal (methamphetamine) and cannabis toxicity. Furthermore, three patients (37.5%) died due to the complications of surgery such as gastrointestinal leakage of an abdominal abscess. CONCLUSION: Conservative treatment seems to be better for the management of body packers. In addition, it is necessary to monitor patients for possible signs and symptoms of intoxication and gastrointestinal obstruction.

Multivisceral robotic resection: a glimpse into the future of minimally invasive abdominal surgery.

A 62-year-old man was referred to the Hepato-Pancreato-Biliary (HPB) surgeons with left upper quadrant discomfort. The initial investigations and CT scans revealed a tumour in the pancreatic tail with liver metastases, confirmed on MRI. It was initially thought to be an adenocarcinoma; however, further investigations found that it was a grade 1 neuroendocrine tumour with Ki 67 at 1% and it was agreed that he would undergo a total robotic surgery involving resection of the locally advanced tumour of the tail of pancreas, with the involvement of the stomach, and splenic flexure of the colon with liver metastases. The resulting procedure was a total robotic distal pancreatectomy, splenectomy, sleeve resection of stomach, cholecystectomy, atypical resection of two liver lesions and microwave ablation of multiple liver lesions. Four days post-operatively, he was discharged from hospital and commenced adjuvant chemotherapy. He currently enjoys a good quality of life.

Accuracy of Preoperative MDCT in Patients With Penetrating Abdominal and Pelvic Trauma.

PURPOSE: This study aims to evaluate the overall diagnostic accuracy of preoperative multidetector computed tomography (MDCT) in penetrating abdominal and pelvic injuries (PAPI). METHOD AND MATERIALS: We used our hospitals' trauma registry to retrospectively identify patients with PAPI from January 1, 2006, to December 31, 2016. Only patients who had a 64-MDCT scan at presentation and subsequently underwent laparotomy or laparoscopy were included in our study cohort. Each finding noted on MDCT was rated using a 5-point scale to indicate certainty of injury, with a score of 0 being definitive. Using surgical findings as the gold standard, the accuracy of radiology reports was analyzed in 2 ways. A κ statistic was calculated to evaluate each pair of values for absolute agreement, and ratings for all organ systems were analyzed using a repeated measures analysis of variance (ANOVA) to determine whether radiology and surgical findings were similar enough to be clinically meaningful. Qualitative review of the radiology and surgical reports focused on the gastrointestinal (GI) tract was conducted. RESULTS: Our cohort consisted of 38 males and 4 females with a median age of 29 years and a median injury severity score of 15.6. For this study, 12 different organ groups were categorized and analyzed. Of those organ groups, absolute agreement between MDCT and surgical findings was found only for liver and spleen (κ values ranging from 0.2 to 0.5). Additionally, the ANOVA revealed an interaction between finding type and organ system (F 1, 33 = 7.4, P < .001). The most clinically significant discrepancies between MDCT and surgical findings were for gallbladder, bowel, mesenteric, and diaphragmatic injuries. Qualitative review of the GI tract revealed that radiologists can detect significant findings such as presence of injury, however, localization and extent of injury pose a challenge. CONCLUSION: The detection of clinically significant injuries to solid organs in trauma patients with PAPI on 64-MDCT is adequate. However, detection of injury to the remaining organ groups on MDCT, especially bowel, mesentery, and diaphragm, remains a challenge.

Consultas por ingestión de cuerpos extraños digestivos en unas urgencias pediátricas / Consultations for digestive foreign bodies ingestion in a pediatric emergency department

OBJETIVO: La ingestión de un cuerpo extraño (CE) angustia a muchas familias que consultan con premura a Urgencias. El objetivo del estudio fue determinar las características epidemiológicas de los niños que consultaban por sospecha de ingesta de CE y sus consecuencias. MÉTODOS: Se realizó un estudio descriptivo-observacional, realizado en un centro materno-infantil de tercer nivel. Se seleccionaron los informes de Urgencias de pacientes menores de 18 años con diagnóstico de alta por "Ingesta CE" (código 938 CIM-9-MC hasta mayo 2018; código T18.9XXA CIM-10-MC posteriormente) del 1/1/2017 al 31/12/2018. Los datos fueron analizados con el programa estadístico SPSS 25.0. RESULTADOS: Se incluyeron 458 casos. La edad mediana fue de 3,8 años (p25-75: 1,9-6,6 años); 267 personas (58,3%) fueron varones. El 78,9% consultaron durante las 6 horas posteriores a la ingesta. Refirieron causa accidental el 98,9% los casos. En el 96,7%, la ingesta fue de un único CE. Los objetos más frecuentes fueron metálicos (46,7%), plásticos (16,4%) y huesos/cáscaras de alimentos (12,9%). El 23,6% de CE implicados fueron afilados/puntiagudos. El 49,1% de los pacientes presentaron algún síntoma. Se realizó alguna prueba complementaria en un 69,4% de los casos, sobre todo radiografías (63,5%). Se usó el detector de metales en el 10%. El 9,6% precisó endoscopia. El 90,4% fue dado de alta desde Urgencias, con un 12,1% de reconsultas. CONCLUSIONES: Las consultas por ingestión de CE son relativamente frecuentes en Urgencias y, aunque la mayoría son dados de alta, muchos pacientes requieren pruebas complementarias, y un número no despreciable, necesita endoscopia. El perfil del paciente es el de un varón en edad preescolar que acude espontáneamente a Urgencias por ingesta accidental de un objeto romo metálico

OBJECTIVE: Foreign body (FB) ingestion distresses many families who consult the emergency department promptly. The objective of the study is to determine the epidemiological characteristics of children who consult due to suspected FB intake and its consequences. METHODS: Descriptive-observational study, carried out in a third-level maternal and child center. Emergency reports were selected from patients under 18 years of age with a diagnosis of discharge "Ingesta CE" (code 938 CIM-9-MC until May 2018; code T18.9XXA CIM-10-MC later) from 1/1/2017 until 12/31/2018. Miscoded and reconsultations within the same episode were excluded. Data was analysed with the statistics program SPSS 25.0. RESULTS: 458 cases were included; median age 3.8 years (p25-75: 1.9-6.6 years); 267 (58.3%) males. 78.9% consulted in the first 6 hours after intake. Accidental cause was reported in 98.9% of cases. In 96.7% a single FB was ingested. The most frequent types of object were metallic (46.7%), plastics (16.4%) and food bones/shells (12.9%). The 23.6% of FB involved were sharp/pointed. 49.1% of the patients presented symptoms. A complementary test was performed in 69.4%, especially radiographs (63.5%). Metal detector was used in 10%. 9.6% required endoscopy. 90.4% were discharged from the emergency department, with 12.1% of reconsultations. CONCLUSIONS: Consultations for FB ingestion are relatively frequent in the emergency department and, although most of them are discharged, many patients require complementary tests and a non-negligible number, endoscopy. The patient's profile is that of a preschooler who spontaneously goes to the emergency room due to an accidental ingestion of a blunt metallic object

Ultrasonographic assessment of organs other than the heart in patients with heart failure.

The number of patients with heart failure has been dramatically increasing in Japan in association with aging of the society. This phenomenon is referred to as a heart failure pandemic. The fundamental origin of heart failure is cardiac dysfunction. Echocardiography is widely used to assess cardiac function, as well as to diagnose heart diseases that cause cardiac dysfunction. However, the severity of heart failure is not necessarily correlated with that of cardiac dysfunction. This is partly explained by the fact that heart failure induces dysfunction of organs other than the heart through hemodynamic deterioration and neurohumoral changes. In addition, one of the characteristics of patients with heart failure, particularly elderly patients, is the presence of numerous comorbidities. Symptoms of heart failure are not specific, and assessment of cardiac function, particularly left ventricular diastolic function, has not been established. Thus, ultrasonographic assessment of organs other than the heart helps the diagnosis of heart failure, assessment of the severity of heart failure, and development of our understanding of the pathophysiology in each patient. This review summarizes current knowledge about the usefulness of ultrasonographic assessment of organs other than the heart in heart failure.

Imaging of Gastrointestinal and Abdominal Emergencies in Binge Drinking.

Excess alcohol consumption is a leading cause of preventable morbidity and mortality globally. The pattern of consumption of alcoholic beverages has changed in our society in the recent past, with binge drinking becoming more and more common, especially among young adults. Abdominal pain following alcohol consumption can be secondary to a wide range of pathologies, the treatment algorithm of which can range from medical supportive treatment to more invasive life-saving procedures such as transarterial embolization and emergency laparotomy. Correct diagnosis, differentiation among these conditions, and implementing the correct management algorithm is heavily reliant on accurate and appropriate imaging. We review the pathophysiology, clinical presentation, imaging features and management options of acute abdominal emergencies secondary to binge drinking, based on a selection of illustrative cases.

Indirect percutaneous core needle biopsy of solid pancreatic or peripancreatic lesions.

Solid pancreatic or peripancreatic lesions comprise a heterogeneous group of diseases that rely on a multimodality imaging approach for subsequent tissue procurement. Endoscopic ultrasound (EUS)-guided fine needle aspiration (FNA)/biopsy is an effective and safe method for tissue diagnosis in this region. The failure to obtain adequate tissue for diagnosis under EUS guidance is still a rare but important issue. Percutaneous core needle biopsy (CNB) provides an alternative pathway for adequate specimen acquisition. Because of the deep retroperitoneal location, the percutaneous biopsy of pancreatic or peripancreatic lesions may inevitably pass through visceral organs. The procedure is relatively risky and difficult for general radiologists, particularly beginners, and an adequate knowledge of the abdominal anatomy and biopsy technique is indispensable. In this review, various aspects of percutaneous CNB for solid pancreatic or peripancreatic lesions using different trans-organ approaches are reviewed to increase the chance of successful biopsy.

Pneumomediastinum in blunt trauma: If aerodigestive injury is not seen on CT, invasive workup is not indicated.

BACKGROUND: Pneumomediastinum following blunt trauma is often observed on CT imaging, and concern for associated aerodigestive injury often prompts endoscopy and/or fluoroscopy. In recent years, adoption of multi-detector CT technology has resulted in high resolution images that may clearly identify aerodigestive injuries. The purpose of this study was to evaluate the utility of multi-detector CT in the identification of blunt aerodigestive injuries. METHODS: Over five years, patients with pneumomediastinum following blunt trauma were identified from the registry of a level 1 trauma center. All CT imaging of trauma patients during this time period was accomplished with 64-slice scanners. RESULTS: 127 patients with blunt traumatic pneumomediastinum were identified. Five airway injuries were identified, and all injuries were evident on CT imaging. No patient was found to have airway injury by endoscopy that was not evident on CT. No patient had an esophageal injury. CONCLUSION: Multi-detector CT imaging identifies aerodigestive injuries associated with pneumomediastinum following blunt trauma. The absence of a recognizable aerodigestive injury by CT effectively rules out the presence of such injury.

Judging the J pouch: a pictorial review.

Restorative total proctocolectomy with ileal pouch-anal anastomosis is the surgery of choice for patients with medically refractory ulcerative colitis, ulcerative colitis with high-grade dysplasia or multi-focal low-grade dysplasia, and for patients with familial adenomatous polyposis. The natural history of the surgery is favorable, and patients generally experience improved quality of life and acceptable long-term functional outcome. However, some patients experience significant long-term morbidity from early and/or late pouch-related complications. When complications arise, radiologists must understand the advantages and disadvantages of the various imaging modalities that can be used to assess the pouch. Radiologist familiarity with the surgical technique, pouch anatomy, and imaging appearance of the various potential early and late complications will help facilitate appropriate clinical and surgical decision-making. This review provides an anatomic-based imaging review of the pouch and pouch-related complications, including numerous illustrative fluoroscopic and cross-sectional imaging examples.

Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children.

Coins are the most common ingested metallic foreign bodies among children. The goal of this protocol is to assess the accuracy and feasibility of using a handheld metal detector to detect ingested metallic foreign bodies in children. We propose that by introducing handheld metal detector screening early in the triage process of children with high suspicion of metallic foreign body ingestion, the number of radiographs being ordered to localize the metallic foreign body can be reduced in this radio-sensitive population. The study protocol requires the screening of the participants for history of foreign body ingestion and exclusion of patients with respiratory distress or metallic implants. The patient changes to hospital gown and items that could contain metal like eyeglasses, earrings, pendants, and ornaments are removed. The patient is positioned in the center of the room away from other metallic interferences. The working status of the handheld metal detector is first confirmed by eliciting a positive audio-visual signal. Then the screening is done in an erect position with head in extension to expose the neck, from the level of the chin to the level of the hip joint, to cover the anatomical areas from neck to pelvis in a zig-zag manner both anteriorly and posteriorly. A positive audio-visual signal is carefully noted during the scanning for the presence of metallic foreign body. Relevant radiographs are ordered as per the area detected on the metal detector screening. The handheld metal detector was able to precisely identify all the coins among the ingested metallic foreign bodies in our study. The handheld metal detector could not consistently detect non-coin metallic foreign bodies. This protocol demonstrates the accuracy of handheld metal detector in the identification and localization of coins and coin like metallic foreign bodies.

Foreign body ingestion in pediatric patients.

PURPOSE OF REVIEW: The purpose of this article is to review clinical manifestations and management of common pediatric foreign body ingestions, with a particular focus on some of the current trends. RECENT FINDINGS: Foreign body ingestion (FBI) is a problem that is frequently encountered by pediatric providers. As new toys and products enter the marketplace, there may also be new dangers from those objects not initially recognized. Some of the recent trends and findings in pediatric FBI include an increase in adolescent injury from ingestion of laundry detergent pods because of a popular game where participants are encouraged to bite or swallow the pods, and injuries associated with ingesting parts of a popular toy known as a 'Fidget Spinner'. SUMMARY: Adverse events resulting from FBI range the entire gamut from nonexistent or minor symptoms to moderate injury and rarely may be fatal. Factors such as age, type of object ingested, anatomic location of the foreign body, and timing from ingestion to receipt of medical attention all determine the risk posed to the child and guide management decisions. Because of the constant development of products, and the potential for the emergence of new and dangerous trends among children, continued surveillance by the medical community is important in monitoring and managing injuries associated with FBI.

Automatic Multi-Organ Segmentation on Abdominal CT With Dense V-Networks.

Automatic segmentation of abdominal anatomy on computed tomography (CT) images can support diagnosis, treatment planning, and treatment delivery workflows. Segmentation methods using statistical models and multi-atlas label fusion (MALF) require inter-subject image registrations, which are challenging for abdominal images, but alternative methods without registration have not yet achieved higher accuracy for most abdominal organs. We present a registration-free deep-learning-based segmentation algorithm for eight organs that are relevant for navigation in endoscopic pancreatic and biliary procedures, including the pancreas, the gastrointestinal tract (esophagus, stomach, and duodenum) and surrounding organs (liver, spleen, left kidney, and gallbladder). We directly compared the segmentation accuracy of the proposed method to the existing deep learning and MALF methods in a cross-validation on a multi-centre data set with 90 subjects. The proposed method yielded significantly higher Dice scores for all organs and lower mean absolute distances for most organs, including Dice scores of 0.78 versus 0.71, 0.74, and 0.74 for the pancreas, 0.90 versus 0.85, 0.87, and 0.83 for the stomach, and 0.76 versus 0.68, 0.69, and 0.66 for the esophagus. We conclude that the deep-learning-based segmentation represents a registration-free method for multi-organ abdominal CT segmentation whose accuracy can surpass current methods, potentially supporting image-guided navigation in gastrointestinal endoscopy procedures.

Uncertainty-Aware Organ Classification for Surgical Data Science Applications in Laparoscopy.

OBJECTIVE: Surgical data science is evolving into a research field that aims to observe everything occurring within and around the treatment process to provide situation-aware data-driven assistance. In the context of endoscopic video analysis, the accurate classification of organs in the field of view of the camera proffers a technical challenge. Herein, we propose a new approach to anatomical structure classification and image tagging that features an intrinsic measure of confidence to estimate its own performance with high reliability and which can be applied to both RGB and multispectral imaging (MI) data. METHODS: Organ recognition is performed using a superpixel classification strategy based on textural and reflectance information. Classification confidence is estimated by analyzing the dispersion of class probabilities. Assessment of the proposed technology is performed through a comprehensive in vivo study with seven pigs. RESULTS: When applied to image tagging, mean accuracy in our experiments increased from 65% (RGB) and 80% (MI) to 90% (RGB) and 96% (MI) with the confidence measure. CONCLUSION: Results showed that the confidence measure had a significant influence on the classification accuracy, and MI data are better suited for anatomical structure labeling than RGB data. SIGNIFICANCE: This paper significantly enhances the state of art in automatic labeling of endoscopic videos by introducing the use of the confidence metric, and by being the first study to use MI data for in vivo laparoscopic tissue classification. The data of our experiments will be released as the first in vivo MI dataset upon publication of this paper.

Radiographic appearance and clinical significance of fidget spinner ingestions.

BACKGROUND: According to anecdotal press reports, there have been medically significant ingestions of fidget spinner toys, including ingestions that required endoscopic intervention. Fidget spinners have been marketed to improve attention and have been suggested as a therapeutic alternative to medications in children with attention deficit hyperactivity disorder (ADHD). OBJECTIVE: To describe the radiographic appearance and features of ingested fidget spinner components. To evaluate clinical significance via rates of endoscopic intervention, incidence in patients on ADHD medications, and mean age compared to other accidental foreign body ingestions. MATERIALS AND METHODS: A nested retrospective case control study analyzed pediatric accidental foreign body ingestions identified via electronic medical record search between March 1, 2017, and Feb. 28, 2018. Radiographic identifiability, component type and maximum diameter of ingested fidget spinner components were described. A nested cohort of non-fidget spinner ingestions between May 1 and Aug. 31, 2017, was compared with the fidget spinner ingestions for rates of endoscopic intervention (a), concomitant use of ADHD medication (b) and mean age (c) using the Fisher exact test (a and b) and independent samples t-test (c). RESULTS: There were 1,095 unintentional foreign body ingestions. Ten were ingested fidget spinner component ingestions. Eight of the 10 ingested components were radiographically identifiable. Compared with the nested cohort of non-fidget spinner ingestions, fidget spinner ingestions were more likely to undergo endoscopic intervention (P=0.009, 5/10 fidget spinner ingestions vs. 54/383 other ingestions). Fidget spinner patients were more likely to be on ADHD medication (P=0.011, 2/10 fidget spinners vs. 5/383 other). Fidget spinner mean patient age was significantly older than other ingestions (P=0.015, mean: 7.1 years fidget spinner ingestions vs. 4.0 years for other ingestions). CONCLUSION: Compared with other foreign body ingestions, patients who ingested fidget spinner components were more likely to undergo endoscopic intervention, had a higher rate of ADHD medication use and were older. Familiarity with the radiographic appearance of ingested fidget spinner components is important for patient management.

Practical Applications of Dual-Energy Computed Tomography in the Acute Abdomen.

With new developments in workflow automation, as well as technological advances enabling faster imaging with improved image quality and dose profile, dual-energy computed tomography is being used more often in the imaging of the acutely ill and injured patient. Its ability to identify iodine, differentiate it from hematoma or calcification, and improve contrast resolution has proven invaluable in the assessment of organ perfusion, organ injury, and inflammation.

Ex vivos models to teaching therapeutic endoscopic ultrasound (T-EUS).

BACKGROUND: Endoscopic ultrasound training has a learning curve greater than the other endoscopic therapeutic techniques. One of the preclinical teaching methods is the use of ex vivo porcine models. AIM: To describe five ex vivo porcine models for training in therapeutic echoendoscopic procedures. MATERIALS AND METHODS: Using porcine digestive tract containing esophagus, stomach, duodenum, spleen, liver and gallbladder, five models for therapeutic echoendoscopy training were described. With other segments of the porcine pieces (such as the bladder, spleen segment and omentum segment) and with easily accessible materials (such as grape and ultrasound gel), lesions were simulated to be treated. These models were applied in the Hands on course at the IRCAD (Institut de recherche contre les cancers de l'appareil digestif) Barretos of 2017. Endoscopic equipment and instruments are the same as those used in clinical practice. RESULT: The models are easily reproducible and do not require exchange during the hands on course period. Endoscopic and echographic imaging and tactile sensitivity are similar to the real one. CONCLUSION: The models described in this study demonstrated to be realistic, easy to reproduce and allow repetition during the same session. However, comparative studies are necessary to verify the real impact on teaching.

Imaging paracoccidioidomycosis: A pictorial review from head to toe.

Paracoccidioidomycosis is an infectious disease characterized primarily by pulmonary involvement and potential dissemination to other organs, mainly mucosa and skin; however, it can affect any organ in the body. Although difficult to diagnose purely based on imaging, imaging is important for diagnosis, follow-up, and assessment of disease-related complications. We provide a comprehensive review of the most notable imaging findings of paracoccidioidomycosis.