|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Imaging and interventions in hilar cholangiocarcinoma: A review显示文摘Hilar cholangiocarcinoma is a common malignant tumor of the biliary tree. It has poor prognosis with very low 5-year survival rates. Various imaging modalities are available for detection and staging of the hilar cholangiocarcinoma. Although ultrasonography is the initial investigation of choice, imaging with contrast enhanced computed tomography scan or magnetic resonance imaging is needed prior to management. Surgery is curative wherever possible. Radiological interventions play a role in operable patients in theform of biliary drainage and/or portal vein embolization. In inoperable cases, palliative interventions include biliary drainage, biliary stenting and intra-biliary palliative treatment techniques. Complete knowledge of application of various imaging modalities available and about the possible radiological interventions is important for a radiologist to play a critical role in appropriate management of such patients.We review the various imaging techniques and appearances of hilar cholangiocarcinoma and the possible radiological interventions. | Kumble Seetharama Madhusudhan Shivanand Gamanagatti Arun Kumar Gupta | 2015 | World Journal of Radiology2015，7，2： | 18 |
| 2 | Imaging evaluation of traumatic thoracolumbar spine injuries: Radiological review显示文摘Spine fractures account for a large portion of musculoskeletal injuries worldwide. A classification of spine fractures is necessary in order to develop a common language for treatment indications and outcomes. Several classification systems have been developed based on injury anatomy or mechanisms of action, but they have demonstrated poor reliability, have yielded little prognostic information, and have not been widely used. For this reason, the Arbeitsgemeinschaftfür Osteosynthesefragen(AO) committee has classified thorocolumbar spine injuries based on the pathomorphological criteria into3 types(A: Compression; B: Distraction; C: Axial torque and rotational deformity). Each of these types is further divided into 3 groups and 3 subgroups reflecting progressive scale of morphological damage and the degree of instability. Because of its highly detailed sub classifications, the AO system has shown limited interobserver variability. It is similar to its predecessors in that it does not incorporate the patient's neurologic status.The need for a reliable, reproducible, clinically relevant, prognostic classification system with an optimal balance of ease of use and detail of injury description contributed to the development of a new classification system, the thoracolumbar injury classification and severity score(TLICS). The TLICS defines injury based on three clinical characteristics: injury morphology, integrity of the posterior ligamentous complex, and neurologic status of the patient. The severity score offers prognostic information and is helpful in decision making about surgical vs nonsurgical management. | Shivanand Gamanagatti Deepak Rathinam Krithika Rangarajan Atin Kumar Kamran Farooque Vijay Sharma | 2015 | World Journal of Radiology2015，7，9： | 18 |
| 3 | Imaging and interventions in Budd-Chiari syndrome显示文摘Budd-Chiari syndrome(BCS) consists of a group of disorders with obstruction of hepatic venous outflow leading to increased hepatic sinusoidal pressure and portal hypertension.Clinically,two forms of disease(acute and chronic) are recognized.Mostly the patients present with ascites,hepatomegaly,and portal hypertension.In acute disease the liver is enlarged with thrombosed hepatic veins(HV) and ascites,whereas in the chronic form of the disease there may be membranous occlusion of HV and/or the inferior vena cava(IVC),or there may be short or long segment fibrotic constriction of HV or the suprahepatic IVC.Due to advances in radiological interventional techniques and hardware,there have been changes in the management protocol of BCS with surgery being offered to patients not suitable for radiological interventions or having acute liver failure requiring liver transplantation.The present article gives an insight into various imaging findings and interventional techniques employed in the management of BCS. | Amar Mukund Shivanand Gamanagatti | 2011 | World Journal of Radiology2011，3，7： | 11 |
| 4 | Blunt pancreatic trauma: A persistent diagnostic conundrum?显示文摘Blunt pancreatic trauma is an uncommon injury but has high morbidity and mortality. In modern era of trauma care, pancreatic trauma remains a persistent challenge to radiologists and surgeons alike. Early detection of pancreatic trauma is essential to prevent subsequent complications. However early pancreatic injury is often subtle on computed tomography(CT) and can be missed unless specifically looked for. Signs of pancreatic injury on CT include laceration, transection, bulky pancreas, heterogeneous enhancement, peripancreatic fluid and signs of pancreatitis. Pan-creatic ductal injury is a vital decision-making parameter as ductal injury is an indication for laparotomy. While lacerations involving more than half of pancreatic parenchyma are suggestive of ductal injury on CT, ductal injuries can be directly assessed on magnetic resonance imaging(MRI) or encoscopic retrograde cholangio-pancreatography. Pancreatic trauma also shows temporal evolution with increase in extent of injury with time. Hence early CT scans may underestimate the extent of injures and sequential imaging with CT or MRI is important in pancreatic trauma. Sequential imaging is also needed for successful nonoperative management of pancreatic injury. Accurate early detection on initial CT and adopting a multimodality and sequential imaging strategy can improve outcome in pancreatic trauma. | Atin Kumar Ananya Panda Shivanand Gamanagatti | 2016 | World Journal of Radiology2016，8，2： | 8 |
| 5 | Magnetic resonance imaging in glenohumeral instability显示文摘The glenohumeral joint is the most commonly dislocated joint of the body and anterior instability is the most common type of shoulder instability.Magnetic resonance (MR) imaging,and more recently,MR arthrography,have become the essential investigation modalities of glenohumeral instability,especially for pre-procedure evaluation before arthroscopic surgery.Injuries associated with glenohumeral instability are variable,and can involve the bones,the labor-ligamentous components,or the rotator cuff.Anterior instability is associated with injuries of the anterior labrum and the anterior band of the inferior glenohumeral ligament,in the form of Bankart lesion and its variants;whereas posterior instability is associated with reverse Bankart and reverse Hill-Sachs lesion.Multidirectional instability often has no labral pathology on imaging but shows specific osseous changes such as increased chondrolabral retroversion.This article reviews the relevant anatomy in brief,the MR imaging technique and the arthrographic technique,and describes the MR findings in each type of instability as well as common imaging pitfalls. | Manisha Jana Shivanand Gamanagatti | 2011 | World Journal of Radiology2011，3，9： | 7 |
| 6 | Endoscopic ultrasound guided thrombin injection of angiographically occult pancreatitis associated visceral artery pseudoaneurysms:Case series显示文摘Pseudoaneurysm is a known complication of pancreatitis associated with significant mortality and morbidity. Imaging plays an important role in the diagnosis and management. Computed tomography(CT) helps localize the lesion and the severity of the background pancreatitis but digital subtraction angiography with coil embolization is recommended to avoid bleeding and inadvertent surgery. However, in cases where angiographic coil embolization is not feasible due to technical reasons, thrombin injection via CT or ultrasound guidance remains a viable option and often described in literature. In this series, effort has been made to highlight the role of endoscopic ultrasound guided thrombin instillation especially in patients with poorly visualized pseudoaneurysm on ultrasound thereby avoiding surgery and the associated mortality and morbidity. | Shivanand Gamanagatti Usha Thingujam Pramod Garg Surajkumar Nongthombam Nihar Ranjan Dash | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，13： | 6 |
| 7 | Imaging in renal trauma显示文摘Renal injuries are classified,based on the American Association for the Surgery of Trauma classification,in to five grades of injury.Several imaging modalities have been available for assessing the grade of renal injury,each with their usefulness and limitations.Currently,plain radiographs and intravenous urography have no role in the evaluation of patients with suspected renal injury.Ultrasonography(USG) has a limited role in evaluating patients with suspected retroperitoneal injury;however,it plays an important role during follow up in patients with urinoma formation.USG helps to monitor the size of a urinoma and also for the drainage procedure.The role of selective renal arteriography is mainly limited to an interventional purpose rather than for diagnostic utility.Retrograde pyelography is useful in assessing ureteral and renal pelvis integrity in suspected ureteropelvic junction injury and for an interventional purpose,like placing a stent across the site of ureteric injury.Magnetic resonance imaging has no role in acute renal injuries.Multidetector computed tomography is the modality of choice in the evaluation of renal injuries.It is also useful in evaluating traumatic injuries to kidneys with preexisting abnormalities and can help to define the extent of penetrating injuries in patients with stab wounds in the flank region.The combination of imaging findings along with clinical information is important in the management of the individual patient.This article will describe a spectrum of renal injuries encountered in a trauma setting. | Madhukar Dayal Shivanand Gamanagatti Atin Kumar | 2013 | World Journal of Radiology2013，5，8： | 6 |
| 8 | Endovascular management in abdominal visceral arterial aneurysms:A pictorial essay显示文摘Visceral artery aneurysms(VAAs) include aneurysms of the splanchnic circulation and those of the renal artery.Their diagnosis is clinically important because of the associated high mortality and potential complications.Splenic,superior mesenteric,gastroduodenal,hepatic and renal arteries are some of the common arteries affected by VAAs.Though surgical resection and anastomosis still remains the treatment of choice in some of the cases,especially cases involving the proximal arteries,increasingly endovascular treatment is being used for more distal vessels.We present a pictorial review of various intra-abdominal VAAs and their endovascular management. | Manisha Jana Shivanand Gamanagatti Amar Mukund Sujoy Paul Pankaj Gupta Pramod Garg Tushar K Chattopadhyay Peush Sahni | 2011 | World Journal of Radiology2011，3，7： | 5 |
| 9 | Preoperative transarterial Embolisation in bone tumors显示文摘Bone tumors include a variety of lesions, both primary and metastatic. The treatment modalities for bone tumors vary with the individual lesion, but in general surgical excision is the treatment of choice with other adjunctive therapies. However, surgery for many bone tumors is complex due to several factors including tumor bulk, vascularity, vicinity to vital structures and potentially inaccessible location of the lesion. Transarterial Embolisation (TAE) is one of the important adjuvant treatment modalities and in some cases it may be the primary and curative treatment. Preoperative TAE has proved to be effective in both primary and metastatic bone tumors. It reduces tumor vascularity and intraoperative blood loss, the need for blood transfusion and associated complications, allows better definition of tissue planes at surgery affording more complete excision, and hence reduced recurrence. Preoperative chemoEmbolisation has also been shown to increase the sensitivity of some tumors to subsequent chemotherapy and radiotherapy. There are several techniques and embolic agents available for this purpose, but the ultimate aim is to achieve tumor devascularization. In this review, we discuss the techniques including the choice of embolic agent, application to individual lesions and potential complications. | Pankaj Gupta Shivanand Gamanagatti | 2012 | World Journal of Radiology2012，4，5： | 3 |
| 10 | Bipolar radiofrequency ablation of tibialchondroblastomas: A report of three cases显示文摘Chondroblastoma is a rare benign cartilaginous neoplasm of bone. The recurrence rate is high and complications are frequent following open curettage with bone grafting which is the standard treatment forchondroblastomas. We performed radiofrequency ablation in three cases of tibialchondroblastoma using the bipolar system. One patient experienced residual pain for which repeat ablation was performed. No other complications were observed during follow-up. Radiofrequency ablation may offer an effective alternative for the treatment of selected cases of chondroblastoma. The lesion characteristics which are likely to influence treatment outcome and the advantages offered by the bipolar system are discussed. | Prathiba Rajalakshmi Deep N Srivastava Shivanand Gamanagatti Pramod Kumar Julka Sushma Bhatnagar Shishir Rastogi | 2012 | World Journal of Radiology2012，4，7： | 2 |
| 11 | Radiological interventions in malignant biliary obstruction显示文摘Malignant biliary obstruction is commonly caused by gall bladder carcinoma, cholangiocarcinoma and metastatic nodes. Percutaneous interventions play an important role in managing these patients. Biliary drainage, which forms the major bulk of radiological interventions, can be pal iative in inoperable patients or pre-operative to improve liver function prior to surgery. Other interventions include cholecystostomy and radiofrequency ablation. We present here the indications, contraindications, technique and complications of the radiological interventions performed in patients with malignant biliary obstruction. | Kumble Seetharama Madhusudhan Shivanand Gamanagatti Deep Narayan Srivastava Arun Kumar Gupta | 2016 | World Journal of Radiology2016，8，5： | 2 |
| 12 | Diffusion-weighted MRI in assessment of renal dysfunction显示文摘 | Ankur Goyal Raju Sharma Ashu Bhalla Shivanand Gamanagatti Amlesh Seth | 2012 | Indian Journal of Radiology and Imaging2012，，3： | 1 |
| 13 | Preoperative embolization of primary bone tumors:A case control study显示文摘AIM:To study the safety and effectiveness of preoperative embolization of primary bone tumors in relation to intraoperative blood loss,intraoperative blood transfusion volume and surgical time.METHODS:Thirty-three patients underwent preoperative embolization of primary tumors of extremities,hip or vertebrae before resection and stabilization.The primary osseous tumors included giant cell tumors,aneurysmal bone cyst,osteoblastoma,chondroblastoma and chondrosarcoma.Twenty-six patients were included for the statistical analysis(embolization group)as they were operated within 0-48 h within preoperative embolization.A control group(non-embolization group,n = 28)with bone tumor having similar histological diagnosis and operated without embolization was retrieved from hospital record for statistical comparison.RESULTS:The mean intraoperative blood loss was 1300 mL(250-2900 mL),the mean intraoperative blood transfusion was 700 m L(0-1400 m L)and the mean surgical time was 221 ± 76.7 min for embolization group(group Ⅰ,n = 26).Non-embolization group(group Ⅱ,n = 28),the mean intraoperative blood loss was 1800 m L(800-6000 m L),the mean intraoperative blood transfusion was 1400 mL(700-8400 mL)and the meansurgical time was 250 ± 69.7 min.On comparison,statistically significant(P < 0.001)difference was found between embolisation group and non-embolisation group for the amount of blood loss and requirement of blood transfusion.There was no statistical difference between the two groups for the surgical time.No patients developed any angiography or embolization related complications.CONCLUSION:Preoperative embolization of bone tumors is a safe and effective adjunct to the surgical management of primary bone tumors that leads to reduction in intraoperative blood loss and blood transfusion volume. | Roushan Jha Raju Sharma Shishir Rastogi Shah Alam Khan Arvind Jayaswal Shivanand Gamanagatti | 2016 | World Journal of Radiology2016，8，4： | 1 |
| 14 | MR evaluation of biliary-enteric anastomotic stricture: Does contrast-enhanced T1W MRC provide additional information?显示文摘 | Devasenathipathy Kandasamy Raju Sharma Ashu Seith Bhalla Shivanand R. Gamanagatti Deep N. Srivastava Peush Sahni Rakesh Kumar | 2011 | Clinics and Research in Hepatology and Gastroenterology2011，，8： | 1 |
| 15 | Unusual presentation of Erdheim-Chester disease in a child with acute lymphoblastic leukemia显示文摘Erdheim-Chester disease(ECD) is an uncommon, nonfamilial, non-Langerhans cell histiocytosis, which involves skeletal system and soft tissue usually in middle aged and elderly patients. The characteristic radiologic features include bilateral, symmetric cortical osteosclerosis of the diaphyseal and metaphyseal parts of the long bones, or bilateral symmetrically abnormal intense 99 mTechnetium labelling of the metaphyseal-diaphyseal region of the long bones, and computed tomography scan findings of 'coated aorta' or 'hairy kidneys'. ECD in childhood with osteolytic lesion is extremely rare. We describe an unusual case with an expansile lytic bone lesion at presentation in a case of acute lymphoblastic leukemia. | Archana George Vallonthaiel Asit Ranjan Mridha Shivanand Gamanagatti Manisha Jana Mehar Chand Sharma Shah Alam Khan Sameer Bakhshi | 2016 | World Journal of Radiology2016，8，8： | 1 |
| 16 | Benign neck masses showing restricted diffusion: Is there a histological basis for discordant behavior?显示文摘Diffusion weighted imaging(DWI) evolved as a complementary tool to morphologic imaging by offering additional functional information about lesions. Although the technique utilizes movement of water molecules to characterize biological tissues in terms of their cellularity, there are other factors related to the histological constitution of lesions which can have a significant bearing on DWI. Benign lesions with atypical histology including presence of lymphoid stroma, inherently increased cellularity or abundant extracellular collagen can impede movement of water molecules similar to malignant tissues and thereby, show restricted diffusion. Knowledge of these atypical entities while interpreting DWI in clinical practice can avoid potential misdiagnosis. This review aims to present an imaging spectrum of such benign neck masses which, owing to their distinct histology, can show discordant behavior on DWI. | Abanti Das Ashu S Bhalla Raju Sharma Atin Kumar Meher Sharma Shivanand Gamanagatti Alok Thakar Suresh Sharma | 2016 | World Journal of Radiology2016，8，2： | 1 |
| 17 | Skeletal dysplasias: A radiographic approach and review of common non-lethal skeletal dysplasias显示文摘Skeletal dysplasias are not uncommon entities and a radiologist is likely to encounter a suspected case of dysplasia in his practice. The correct and early diagnosis of dysplasia is important for management of complications and for future genetic counselling. While there is an exhaustive classification system on dysplasias, it is important to be familiar with the radiological features of common dysplasias. In this article, we enumerate a radiographic approach to skeletal dysplasias, describe the essential as well as differentiating features of common non-lethal skeletal dysplasias and conclude by presenting working algorithms to either definitively diagnose a particular dysplasia or suggest the most likely differential diagnoses to the referring clinician and thus direct further workup of the patient. | Ananya Panda Shivanand Gamanagatti Manisha Jana Arun Kumar Gupta | 2014 | World Journal of Radiology2014，6，10： | 1 |
| 18 | Robotic ultrasound:An initial feasibility study显示文摘BACKGROUND Performing ultrasound during the current pandemic time is quite challenging.To reduce the chances of cross-infection and keep healthcare workers safe,a robotic ultrasound system was developed,which can be controlled remotely.It will also pave way for broadening the reach of ultrasound in remote distant rural areas as well.AIM To assess the feasibility of a robotic system in performing abdominal ultrasound and compare it with the conventional ultrasound system.METHODS A total of 21 healthy volunteers were recruited.Ultrasound was performed in two settings,using the robotic arm and conventional hand-held procedure.Images acquired were analyzed by separate radiologists.RESULTS Our study showed that the robotic arm model was feasible,and the results varied based on the organ imaged.The liver images showed no significant difference.For other organs,the need for repeat imaging was higher in the robotic arm,which could be attributed to the radiologist’s learning curve and ability to control the haptic device.The doctor and volunteer surveys also showed significant comfort with acceptance of the technology and they expressed their desire to use it in the future.CONCLUSIONThis study shows that robotic ultrasound is feasible and is the need of the hour during thepandemic. | Sheragaru Hanumanthappa Chandrashekhara Krithika Rangarajan Ayushi Agrawal Sanjay Thulkar Shivanand Gamanagatti Deepak Raina Subir Kumar Saha Chetan Arora | 2022 | World Journal of Methodology2022，12，4： | 0 |
| 19 | Clinical profile and outcomes of hepatocellular carcinoma in primary Budd-Chiari syndrome显示文摘BACKGROUND There is scant literature on hepatocellular carcinoma(HCC)in patients with Budd-Chiari syndrome(BCS).AIM To assess the magnitude,clinical characteristics,feasibility,and outcomes of treatment in BCS-HCC.METHODS A total of 904 BCS patients from New Delhi,India and 1140 from Mumbai,India were included.The prevalence and incidence of HCC were determined,and among patients with BCS-HCC,the viability and outcomes of interventional therapy were evaluated.RESULTS In the New Delhi cohort of 35 BCS-HCC patients,18 had HCC at index presentation(prevalence 1.99%),and 17 developed HCC over a follow-up of 4601 person-years,[incidence 0.36(0.22-0.57)per 100 person-years].BCS-HCC patients were older when compared to patients with BCS alone(P=0.001)and had a higher proportion of inferior vena cava block,cirrhosis,and long-segment vascular obstruction.The median alpha-fetoprotein level was higher in patients with BCS-HCC at first presentation than those who developed HCC at follow-up(13029 ng/mL vs 500 ng/mL,P=0.01).Of the 35 BCS-HCC,26(74.3%)underwent radiological interventions for BCS,and 22(62.8%)patients underwent treatment for HCC[transarterial chemoembolization in 18(81.8%),oral tyrosine kinase inhibitor in 3(13.6%),and transarterial radioembolization in 1(4.5%)].The median survival among patients who underwent interventions for HCC compared with those who did not was 3.5 years vs 3.1 mo(P=0.0001).In contrast to the New Delhi cohort,the Mumbai cohort of BCS-HCC patients were predominantly males,presented with a more advanced HCC[Barcelona Clinic Liver Cancer C and D],and 2 patients underwent liver transplantation.CONCLUSION HCC is not uncommon in patients with BCS.Radiological interventions and liver transplantation are feasible in select primary BCS-HCC patients and may improve outcomes. | Ankit Agarwal Sagnik Biswas Shekhar Swaroop Arnav Aggarwal Ayush Agarwal Gautam Jain Anshuman Elhence Arun Vaidya Amit Gupte Ravi Mohanka Ramesh Kumar Ashwani Kumar Mishra Shivanand Gamanagatti Shashi Bala Paul Subrat Kumar Acharya Akash Shukla Shalimar | 2024 | World Journal of Gastrointestinal Oncology2024，16，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员