BACKGROUND Medical robot is a promising surgical tool,but no specific one has been designed for interventional treatment of chronic pain.We developed a computed tomography-image based navigation robot using a new regi...BACKGROUND Medical robot is a promising surgical tool,but no specific one has been designed for interventional treatment of chronic pain.We developed a computed tomography-image based navigation robot using a new registration method with binocular vision.This kind of robot is appropriate for minimal invasive interventional procedures and easy to operate.The feasibility,accuracy and stability of this new robot need to be tested.AIM To assess quantitatively the feasibility,accuracy and stability of the binocularstereo-vision-based navigation robot for minimally invasive interventional procedures.METHODS A box model was designed for assessing the accuracy for targets at different distances.Nine(three sets)lead spheres were embedded in the model as puncture goals.The entry-to-target distances were set 50 mm(short-distance),100 mm(medium-distance)and 150 mm(long-distance).Puncture procedure was repeated three times for each goal.The Euclidian error of each puncture was calculated and statistically analyzed.Three head phantoms were used to explore the clinical feasibility and stability.Three independent operators conducted foramen ovale placement on head phantoms(both sides)by freehand or under the guidance of robot(18 punctures with each method).The operation time,adjustment time and one-time success rate were recorded,and the two guidancemethods were compared.RESULTS On the box model,the mean puncture errors of navigation robot were 1.7±0.9 mm for the short-distance target,2.4±1.0 mm for the moderate target and 4.4±1.4 mm for the long-distance target.On the head phantom,no obvious differences in operation time and adjustment time were found among the three performers(P>0.05).The median adjustment time was significantly less under the guidance of the robot than under free hand.The one-time success rate was significantly higher with the robot(P<0.05).There was no obvious difference in operation time between the two methods(P>0.05).CONCLUSION In the laboratory environment,accuracy of binocular-stereo-vision-based navigation robot is acceptable for target at 100 mm depth or less.Compared with freehand,foramen ovale placement accuracy can be improved with robot guidance.展开更多
Objective The lack of clarity regarding the application performance of a hybrid operating room(HOR)and the uncertainty of surgical scheduling often lead to its inefficient application.This study aimed to review the cl...Objective The lack of clarity regarding the application performance of a hybrid operating room(HOR)and the uncertainty of surgical scheduling often lead to its inefficient application.This study aimed to review the clinical application of our neurosurgical HOR and propose a scale to score cases clearly.Methods We reviewed the operating procedures and duration of stay in 1865 HOR cases.The actual procedures of each case were summarized into 5 application types,and numerical assignment was used to distinguish the dependence of each type on our HOR:surgical procedures combined with interventional procedures(4 points,the highest dependence),surgical procedures combined with imaging procedures(3 points),interventional procedures(2 points),imaging procedures(1 point),and surgical procedures(0 points,the lowest dependence).Results A novel scale that could score 1865 cases into those 5 grades was developed.The percentages by grade were as follows:4 points,4.24%;3 points,4.88%;2 points,20.75%;1 point,69.38%;and 0 points,0.75%.The cumulative usage time was 4241.9 h,the duration of which was as follows:4 points,16.17%;3 points,15.50%;2 points,31.32%;1 point,35.62%;and 0 points,1.39%.Conclusions The HOR serves as a multifunctional room to treat neurosurgical diseases.The scale helps to quickly prioritize cases that rely more on HOR,providing guidelines for surgical scheduling.Although our HOR is unsuitable for emergency cases,it clearly shows the application performance of our HOR to provide a reference for promoting its efficient application.展开更多
We present a case with hepatic myelopathy(HM) due to a surgical splenorenal shunt that was successfully treated by endovascular interventional techniques.A 39-year-old man presented with progressive spastic paraparesi...We present a case with hepatic myelopathy(HM) due to a surgical splenorenal shunt that was successfully treated by endovascular interventional techniques.A 39-year-old man presented with progressive spastic paraparesis of his lower limbs 14 mo after a splenorenal shunt.A portal venogram identified a widened patent splenorenal shunt.We used an occlusion balloon catheter initially to occlude the shunt.Further monitoring of the patient revealed a decrease in his serum ammonia level and an improvement in leg strength.We then used an Amplatzer vascular plug(AVP) to enable closure of the shunt.During the follow up period of 7 mo,the patient experienced significant clinical improvement and normalization of blood ammonia,without any complications.Occlusion of a surgically created splenorenal shunt with AVP represents an alternative therapy to surgery or coil embolization that can help to relieve shunt-induced HM symptoms.展开更多
Commentary on the article written and published by Peng et al,investigating the role of endoscopic ultrasound(EUS)-guided biliary drainage for palliation of malignant biliary obstruction after failed endoscopic retrog...Commentary on the article written and published by Peng et al,investigating the role of endoscopic ultrasound(EUS)-guided biliary drainage for palliation of malignant biliary obstruction after failed endoscopic retrograde cholangiopan-creatography(ERCP).For 40 years endoscopic biliary drainage was synonymous with ERCP,and EUS was used mainly for diagnostic purposes.The advent of therapeutic EUS has revolutionized the field,especially with the development of a novel device such as electrocautery-enhanced lumen-apposing metal stents.Complete biliopancreatic endoscopists with both skills in ERCP and in interven-tional EUS,would be ideally suited to ensure patients the best drainage technique according to each individual situation.展开更多
AIM： To determine the feasibility of performing computed tomography （CT）-guided transpulmonary radiofrequency ablation （RFA） for hepatocellular carcinoma （HCC） located in the hepatic dome. METHODS： A total of ...AIM： To determine the feasibility of performing computed tomography （CT）-guided transpulmonary radiofrequency ablation （RFA） for hepatocellular carcinoma （HCC） located in the hepatic dome. METHODS： A total of seven patients with HCC comprising seven nodules located in the hepatic dome were treated from April 2004 to December 2004. CTguided transpulmonary RFA was performed using a cool-tip type electrode （Radionics Company） based on a standardized energy protocol. All tumors located in the hepatic dome were not detectable by the usual ultrasound （US） methods. The lesion diameters ranged from 15 to 27 mm. RESULTS： RFA was technically feasible in all the patients. The puncture procedure was performed twice or less and the total average performance time was 40.6 min. Local tumor control was achieved in all the patients. The necrosis diameter ranged from 25 to 35 mm. The mean follow-up period was 9.6 （7-14 mo） mo. There was no local recurrenceat the follow-up points. Pneumothorax requiring pleural drainage was the main complication, which was observed in two of the seven patients （28.6%）. However, it improved with chest drainage tube, and the tube could be removed within 2-3 d. No other major complications were observed.CONCLUSION： CT-guided puncture is useful for the treatment of tumors located in the hepatic dome which are hardly detectable by US, even though pneumothorax sometimes may occur as a complication. In the cases with adhesion in the pleura for which artificial pleural effusion methods are not appropriate, CT-guided RFA is thus considered to be an alternative treatment for HCC located in the hepatic dome.展开更多
In this issue of the Journal of Geriatric Cardiology;Jing et al. showed off their near perfect results of percutaneous coronary interventions (PCI) through transfemoral approach (TFA) and transradial approach (TRA... In this issue of the Journal of Geriatric Cardiology;Jing et al. showed off their near perfect results of percutaneous coronary interventions (PCI) through transfemoral approach (TFA) and transradial approach (TRA) in the elderly Chinese patients. All patients were older.than 60years of age, with an average of 67.……展开更多
BACKGROUND An 81-year-old patient presented to our center with pancreatic head cancer,obstructive jaundice,and acute cholecystitis.Due to duodenal tumor infiltration,both endoscopic retrograde cholangiopancreatography...BACKGROUND An 81-year-old patient presented to our center with pancreatic head cancer,obstructive jaundice,and acute cholecystitis.Due to duodenal tumor infiltration,both endoscopic retrograde cholangiopancreatography and endoscopic ultrasound(EUS)-guided choledochoduodenostomy were technically challenging.CASE SUMMARY An EUS-guided gallbladder drainage along with an EUS-guided fine needle biopsy were performed,resulting in a diagnosis of pancreatic cancer resolution of jaundice and improvement in acute cholecystitis,all in a safe and effective single endoscopic session.CONCLUSION This case demonstrated the successful use of EUS-guided gallbladder drainage and EUS-guided fine needle biopsy in a patient with pancreatic cancer invading the duodenal wall.展开更多
Aim:To evaluate the effectiveness of using cone-beam computed tomography(CBCT)in transcatheter arterial chemoembolization(TACE)to detect hapatocellular carcinoma(HCC)nodules and their feeding arteries.Methods:Twenty-f...Aim:To evaluate the effectiveness of using cone-beam computed tomography(CBCT)in transcatheter arterial chemoembolization(TACE)to detect hapatocellular carcinoma(HCC)nodules and their feeding arteries.Methods:Twenty-four patients with HCCs who underwent TACE using CBCT in addition to conventional digital subtraction angiography(DSA)were enrolled.After both conventional DSA and CBCT through the hepatic artery were acquired,TACE were performed.The nodules were defined as an HCC when dense accumulation of iodized oil was found within the nodule on CT obtained 2 weeks after the TACE.The number of detected nodules and identified feeding arteries,and their correlations with anatomical locations were assessed.Results:A total of 39 HCC nodules(tumor diameter,7-40 mm;mean,17.4±7.9 mm)were detected.Thirty-one nodules were detected by DSA alone but 8 nodules were additionally detected by adding CBCT to DSA.There were 53 feeding arteries associated with the 39 HCC nodules.Among these arteries,21 were identified by DSA alone;however,47 were identified by combining CBCT with DSA.Additional feeding arteries,especially for the nodules located at the right and caudate lobes,were identified by CBCT.On the other hand,there was no difference in detection of nodules between the anatomical locations by CBCT.Conclusion:The use of CBCT in addition to DSA offers potential for increasing the number of detected nodules,and the number of their feeding arteries at the right and caudate lobes.CBCT might improve the quality of TACE procedure for HCC than DSA alone.展开更多
Objective:This study aimed to investigate the feasibility,efficacy,and safety of using a miniature mobile integrated cabin-theatre equipped with angiography and surgical operating room capabilities,and to explore its ...Objective:This study aimed to investigate the feasibility,efficacy,and safety of using a miniature mobile integrated cabin-theatre equipped with angiography and surgical operating room capabilities,and to explore its therapeutic scope,effectiveness,and operational mode.Methods:A miniature mobile integrated operating cabin-theatre was deployed across 15 hospitals in 15 cities or counties in China from April 2012 to November 2024.The interventions and outcomes of interventional and minimally invasive surgical procedures were prospectively observed and evaluated;perioperative complications were documented,and the stability,adaptability,and mobility of the integrated system were assessed.Results:A total of 133 procedures were successfully performed,130 of which were interventional and 3 minimally invasive.The angiography machine showed good imaging performance without any equipment failures,loosening,or damage,with normal chamber unfolding.One patient experienced a fever the day after laparoscopy,while none of the other patients exhibited perioperative complications such as infection,surgical site bleeding/hematoma,or reperfusion arrhythmia.The instrument was easily manipulated,aligning with the needs of clinical intervention and surgery,and was perceived by patients as being a comfortable environment,with no psychological or other obvious discomfort.Conclusions:The miniature mobile integrated cabin-theatre,comprising an angiography machine and an operating room,allows interventional or minimally invasive surgical procedures to be performed smoothly and safely.It can also provide rapid and efficient on-site treatment of acute and critical illnesses across multiple body systems,including the cardiovascular,cerebrovascular,and gastrointestinal systems.展开更多
基金Supported by Jiangsu Provincial Department of Science and Technology,No.BE2017603 and No.BE2017675。
文摘BACKGROUND Medical robot is a promising surgical tool,but no specific one has been designed for interventional treatment of chronic pain.We developed a computed tomography-image based navigation robot using a new registration method with binocular vision.This kind of robot is appropriate for minimal invasive interventional procedures and easy to operate.The feasibility,accuracy and stability of this new robot need to be tested.AIM To assess quantitatively the feasibility,accuracy and stability of the binocularstereo-vision-based navigation robot for minimally invasive interventional procedures.METHODS A box model was designed for assessing the accuracy for targets at different distances.Nine(three sets)lead spheres were embedded in the model as puncture goals.The entry-to-target distances were set 50 mm(short-distance),100 mm(medium-distance)and 150 mm(long-distance).Puncture procedure was repeated three times for each goal.The Euclidian error of each puncture was calculated and statistically analyzed.Three head phantoms were used to explore the clinical feasibility and stability.Three independent operators conducted foramen ovale placement on head phantoms(both sides)by freehand or under the guidance of robot(18 punctures with each method).The operation time,adjustment time and one-time success rate were recorded,and the two guidancemethods were compared.RESULTS On the box model,the mean puncture errors of navigation robot were 1.7±0.9 mm for the short-distance target,2.4±1.0 mm for the moderate target and 4.4±1.4 mm for the long-distance target.On the head phantom,no obvious differences in operation time and adjustment time were found among the three performers(P>0.05).The median adjustment time was significantly less under the guidance of the robot than under free hand.The one-time success rate was significantly higher with the robot(P<0.05).There was no obvious difference in operation time between the two methods(P>0.05).CONCLUSION In the laboratory environment,accuracy of binocular-stereo-vision-based navigation robot is acceptable for target at 100 mm depth or less.Compared with freehand,foramen ovale placement accuracy can be improved with robot guidance.
基金supported by the Technology Innovation Special Major Project of Hubei Province(grant number 2022BCA003).
文摘Objective The lack of clarity regarding the application performance of a hybrid operating room(HOR)and the uncertainty of surgical scheduling often lead to its inefficient application.This study aimed to review the clinical application of our neurosurgical HOR and propose a scale to score cases clearly.Methods We reviewed the operating procedures and duration of stay in 1865 HOR cases.The actual procedures of each case were summarized into 5 application types,and numerical assignment was used to distinguish the dependence of each type on our HOR:surgical procedures combined with interventional procedures(4 points,the highest dependence),surgical procedures combined with imaging procedures(3 points),interventional procedures(2 points),imaging procedures(1 point),and surgical procedures(0 points,the lowest dependence).Results A novel scale that could score 1865 cases into those 5 grades was developed.The percentages by grade were as follows:4 points,4.24%;3 points,4.88%;2 points,20.75%;1 point,69.38%;and 0 points,0.75%.The cumulative usage time was 4241.9 h,the duration of which was as follows:4 points,16.17%;3 points,15.50%;2 points,31.32%;1 point,35.62%;and 0 points,1.39%.Conclusions The HOR serves as a multifunctional room to treat neurosurgical diseases.The scale helps to quickly prioritize cases that rely more on HOR,providing guidelines for surgical scheduling.Although our HOR is unsuitable for emergency cases,it clearly shows the application performance of our HOR to provide a reference for promoting its efficient application.
文摘We present a case with hepatic myelopathy(HM) due to a surgical splenorenal shunt that was successfully treated by endovascular interventional techniques.A 39-year-old man presented with progressive spastic paraparesis of his lower limbs 14 mo after a splenorenal shunt.A portal venogram identified a widened patent splenorenal shunt.We used an occlusion balloon catheter initially to occlude the shunt.Further monitoring of the patient revealed a decrease in his serum ammonia level and an improvement in leg strength.We then used an Amplatzer vascular plug(AVP) to enable closure of the shunt.During the follow up period of 7 mo,the patient experienced significant clinical improvement and normalization of blood ammonia,without any complications.Occlusion of a surgically created splenorenal shunt with AVP represents an alternative therapy to surgery or coil embolization that can help to relieve shunt-induced HM symptoms.
文摘Commentary on the article written and published by Peng et al,investigating the role of endoscopic ultrasound(EUS)-guided biliary drainage for palliation of malignant biliary obstruction after failed endoscopic retrograde cholangiopan-creatography(ERCP).For 40 years endoscopic biliary drainage was synonymous with ERCP,and EUS was used mainly for diagnostic purposes.The advent of therapeutic EUS has revolutionized the field,especially with the development of a novel device such as electrocautery-enhanced lumen-apposing metal stents.Complete biliopancreatic endoscopists with both skills in ERCP and in interven-tional EUS,would be ideally suited to ensure patients the best drainage technique according to each individual situation.
基金Supported by the grant of Center of E-xcellence,Biomedical Research Using Accelerator Technology
文摘AIM： To determine the feasibility of performing computed tomography （CT）-guided transpulmonary radiofrequency ablation （RFA） for hepatocellular carcinoma （HCC） located in the hepatic dome. METHODS： A total of seven patients with HCC comprising seven nodules located in the hepatic dome were treated from April 2004 to December 2004. CTguided transpulmonary RFA was performed using a cool-tip type electrode （Radionics Company） based on a standardized energy protocol. All tumors located in the hepatic dome were not detectable by the usual ultrasound （US） methods. The lesion diameters ranged from 15 to 27 mm. RESULTS： RFA was technically feasible in all the patients. The puncture procedure was performed twice or less and the total average performance time was 40.6 min. Local tumor control was achieved in all the patients. The necrosis diameter ranged from 25 to 35 mm. The mean follow-up period was 9.6 （7-14 mo） mo. There was no local recurrenceat the follow-up points. Pneumothorax requiring pleural drainage was the main complication, which was observed in two of the seven patients （28.6%）. However, it improved with chest drainage tube, and the tube could be removed within 2-3 d. No other major complications were observed.CONCLUSION： CT-guided puncture is useful for the treatment of tumors located in the hepatic dome which are hardly detectable by US, even though pneumothorax sometimes may occur as a complication. In the cases with adhesion in the pleura for which artificial pleural effusion methods are not appropriate, CT-guided RFA is thus considered to be an alternative treatment for HCC located in the hepatic dome.
文摘 In this issue of the Journal of Geriatric Cardiology;Jing et al. showed off their near perfect results of percutaneous coronary interventions (PCI) through transfemoral approach (TFA) and transradial approach (TRA) in the elderly Chinese patients. All patients were older.than 60years of age, with an average of 67.……
文摘BACKGROUND An 81-year-old patient presented to our center with pancreatic head cancer,obstructive jaundice,and acute cholecystitis.Due to duodenal tumor infiltration,both endoscopic retrograde cholangiopancreatography and endoscopic ultrasound(EUS)-guided choledochoduodenostomy were technically challenging.CASE SUMMARY An EUS-guided gallbladder drainage along with an EUS-guided fine needle biopsy were performed,resulting in a diagnosis of pancreatic cancer resolution of jaundice and improvement in acute cholecystitis,all in a safe and effective single endoscopic session.CONCLUSION This case demonstrated the successful use of EUS-guided gallbladder drainage and EUS-guided fine needle biopsy in a patient with pancreatic cancer invading the duodenal wall.
文摘Aim:To evaluate the effectiveness of using cone-beam computed tomography(CBCT)in transcatheter arterial chemoembolization(TACE)to detect hapatocellular carcinoma(HCC)nodules and their feeding arteries.Methods:Twenty-four patients with HCCs who underwent TACE using CBCT in addition to conventional digital subtraction angiography(DSA)were enrolled.After both conventional DSA and CBCT through the hepatic artery were acquired,TACE were performed.The nodules were defined as an HCC when dense accumulation of iodized oil was found within the nodule on CT obtained 2 weeks after the TACE.The number of detected nodules and identified feeding arteries,and their correlations with anatomical locations were assessed.Results:A total of 39 HCC nodules(tumor diameter,7-40 mm;mean,17.4±7.9 mm)were detected.Thirty-one nodules were detected by DSA alone but 8 nodules were additionally detected by adding CBCT to DSA.There were 53 feeding arteries associated with the 39 HCC nodules.Among these arteries,21 were identified by DSA alone;however,47 were identified by combining CBCT with DSA.Additional feeding arteries,especially for the nodules located at the right and caudate lobes,were identified by CBCT.On the other hand,there was no difference in detection of nodules between the anatomical locations by CBCT.Conclusion:The use of CBCT in addition to DSA offers potential for increasing the number of detected nodules,and the number of their feeding arteries at the right and caudate lobes.CBCT might improve the quality of TACE procedure for HCC than DSA alone.
基金funded by the Science and Technology Project of Liaoning Province(2022JH2/101500017).
文摘Objective:This study aimed to investigate the feasibility,efficacy,and safety of using a miniature mobile integrated cabin-theatre equipped with angiography and surgical operating room capabilities,and to explore its therapeutic scope,effectiveness,and operational mode.Methods:A miniature mobile integrated operating cabin-theatre was deployed across 15 hospitals in 15 cities or counties in China from April 2012 to November 2024.The interventions and outcomes of interventional and minimally invasive surgical procedures were prospectively observed and evaluated;perioperative complications were documented,and the stability,adaptability,and mobility of the integrated system were assessed.Results:A total of 133 procedures were successfully performed,130 of which were interventional and 3 minimally invasive.The angiography machine showed good imaging performance without any equipment failures,loosening,or damage,with normal chamber unfolding.One patient experienced a fever the day after laparoscopy,while none of the other patients exhibited perioperative complications such as infection,surgical site bleeding/hematoma,or reperfusion arrhythmia.The instrument was easily manipulated,aligning with the needs of clinical intervention and surgery,and was perceived by patients as being a comfortable environment,with no psychological or other obvious discomfort.Conclusions:The miniature mobile integrated cabin-theatre,comprising an angiography machine and an operating room,allows interventional or minimally invasive surgical procedures to be performed smoothly and safely.It can also provide rapid and efficient on-site treatment of acute and critical illnesses across multiple body systems,including the cardiovascular,cerebrovascular,and gastrointestinal systems.
