Long bone metastases often cause intractable pain,motor dysfunction,and pathological fractures,significantly compromising patients' quality of life.While conventional treatments such as radiotherapy,chemotherapy,analgesics,and surgery have inherent limitations,the"percutaneous reinforced concrete technology",i.e.percutaneous reinforced concrete osteoplasty(PRCO),has demonstrated promising minimally-invasive therapeutic outcomes through closed percutaneous puncture,coaxial placement of metal implants,and bone cement anchoring.This article comprehensively reviews the PRCO,focusing on its research background,therapeutic mechanism,technical key points,clinical efficacy,and potential complications.

Since the 1960s,with the rapid development of interventional radiology technology,liquid embolic agents have become important embolic materials for treating diseases such as tumors,bleeding,and vascular malformations.This article systematically introduces the types of commonly used liquid embolic agents,including iodized oil,hardening agents(such as absolute alcohol and polyvinyl alcohol),cyanoacrylates(such as NBCA and Glubran glue),and ethylene vinyl alcohols(such as Onyx),and analyzes in detail the embolic mechanisms,clinical applications,advantages,and operational limitations of each embolic agent.This article also introduces new liquid embolic agents that have emerged in recent years,including new polymeric agents(such as Magic GlueTM),precipitants(such as Squid and PHIL),phase-change agents(such as GPX)and temperature-sensitive hydrogels(such as TepushenTM),etc.These new materials have achieved significant improvements in biocompatibility,operational flexibility,and clinical efficacy.In addition,this article also discusses the application prospects of liquid embolic agents in controlling acute and chronic bleeding,comprehensive interventional therapy for tumors,treatment of complex vascular malformations,and treatment of visceral aneurysms.Finally,this article points out that future research on liquid embolic agents should focus on the development of new materials,the combination of multimodal treatment methods,the fusion of drug carriers,the application of artificial intelligence and image-guided technology,and personalized design of embolic agent,etc.so as to further enhance the clinical efficacy and safety of liquid embolic agents.

Objective To explore the efficacy and safety of fluoroscopy-guided balloon dilation for esophageal strictures in patients with epidermolysis bullosa(EB).Methods The clinical data and follow-up results of EB patients,who received fluoroscopy-guided balloon dilation due to esophageal stricture at Shanghai Xinhua Hospital from May 2020 to May 2023,were retrospectively collected.The therapeutic efficacy and the prognosis of this treatment method were analyzed.Results A total of 17 EB patients received fluoroscopy-guided balloon dilation treatment due to dysphagia caused by esophageal stricture.Most esophageal strictures were single-site stenosis(13/17,76.5％)and it commonly occurred in the esophageal cervical segment(12/17,70.6％)and the upper thoracic segment(8/17,47.1％)of esophagus.Two patients developed esophageal bleeding after dilatation and no special treatment is required.No other post-treatment complications were observed.In most of the patients(15/17,88.2％)a long-term improvement of the dysphagia symptoms could be obtained after receiving a single balloon dilation treatment.By the last follow-up visit,most of the patients(15/17,88.2％)gained more weight when compared with their pre-treatment body weight,with an average increased weight of 2.97 kg.Conclusion Clinically,EB is a rare etiology that can cause an esophageal stricture.This esophageal stenosis is characterized by a single stenosis mostly located in the upper segment of the esophagus.Fluoroscopy-guided balloon dilation is an effective and safe treatment for this type of esophageal strictures.

As a cross-field discipline,digital intervention integrates digital technology with interventional therapeutic methods.In the clinical practice of interventional radiology,the digital medicine,through using the basic tools such as electronic health records,artificial intelligence,wearable devices,remote monitoring,etc.,has been deeply integrated into the advanced imaging technology,interventional surgery planning,image-guided procedure,navigation equipment,interventional surgery robot,3D printing,remote medical education and training,and other aspects of the clinical work,which greatly optimizes the diagnostic and therapeutic processes and improves the efficiency and precision of medical services.At the same time,digital intervention also brings challenges related to data security and privacy security in medical services.Therefore,more attention should be paid to the balance between the technology and the medical ethics when planning for the future development direction of digital intervention so as to make sure that digital intervention can be continuously and safely developed.(J Intervent Radiol,2024,32:1-6)

Since December 2019, a novel coronavirus (2019-nCoV, SARS-CoV-2) pneumonia (COVID-19) outbreak has occurred in Wuhan, Hubei Province, and the epidemic situation has continued to spread. Such cases have also been found in other parts of the country. The spread of the novel coronavirus pneumonia epidemic has brought great challenges to the clinical practice of thoracic surgery. Outpatient clinics need to strengthen the differential diagnosis of ground glass opacity and pulmonary plaque shadows. During the epidemic, surgical indications are strictly controlled, and selective surgery is postponed. Patients planning to undergo a limited period of surgery should be quarantined for 2 weeks and have a nucleic acid test when necessary before surgery. For patients who are planning to undergo emergency surgery, nucleic acid testing should be carried out before surgery, and three-level protection should be performed during surgery. Patients who are planning to undergo emergency surgery in the epidemic area should be confirmed with or without novel coronavirus pneumonia before operation, and perform nucleic acid test if necessary. Surgical disinfection and isolation measures should be strictly carried out. Among postoperative patients, cases with new coronavirus infection were actively investigated. For the rescue of patients with novel coronavirus infection, attention needs to be paid to prevention and treatment and related complications, including mechanical ventilation-related pneumothorax or mediastinal emphysema, and injury after tracheal intubation.

Percutaneous vertebroplasty (PVP) is a minimally-invasive technique,which has been widely employed in the treatment of hemangiomas,vertebral compression fractures,spinal metastases,myeloma and other diseases.Clinically,it is generally believed that the curative effect of PVP is closely related to the injected amount of bone cement.However,there is still great controversy over the optimal injection volume of bone cement.Based on the current researches both at home and abroad,this article aims to make a brief introduction about the relevant vertebral biomechanical factors that might affect the injection volume of bone cement,the influence of the injected volume of bone cement on the vertebral strength,rigidity and adjacent vertebral bodies.The main current disputes are pointed out so as to lay the foundation for further study.

Objective: To compare the effects of video assisted thoracoscopic surgery(VATS) of intercostal surgery and by subxiphoid surgical treatment for early thymoma, to investigate the feasibility and clinical application value of VATS subxiphoid surgical treatment for thymoma. Methods: From January 2014 to January 2017, 30 thymoma patients who met the diagnostic criteria of the Masaoka stageⅠ~Ⅱ in the People's Hospital of Jingshan County were selected, and were divided into two groups according to the different surgical methods.The observation group (12 patients) received VATS underwent subxiphoid surgery, 18 patients in the control group were treated with VATS intercostal surgery.The operation time, blood loss, drainage time, length of stay, degree of pain, antibacterial time, incidence rate of complication and patients' satisfaction were compared between the two groups. Results: The preoperative general data between the two groups had no statistically significant differences(all P>0.05). The operation time, intraoperative bleeding volume, postoperative drainage time, antibacterial time, postoperative hospitalization time in the observation group were (102.2±26.6)min, (105.9±29.4)mL, (3.8±1.4)d, (6.8±0.3)d, (8.5±1.6)d, respectively, which in the control group were (124.6±35.1)min, (255.6±82.8)mL, (5.2±1.2)d, (9.3±0.8)d, (14.4±1.8)d, respectively, there were statistically significant differences between the two groups(t=1.516, 2.517, 2.857, 4.462, 3.327, all P<0.05). The incidence rate of complications (8.33% vs.16.67%), satisfaction(82% vs.59%) between the two groups had statistically significant differences(χ²=4.013, 4.427, all P<0.05). During the follow-up period, there was no recurrence or metastasis in the two groups. Conclusion Compared with VATS intercostal surgery, VATS subxiphoid approach for surgical treatment of thymoma can reduce surgical trauma and reduce the incidence of complications, reduce the pain of patients, shorten the hospitalization time, its curative effect is more significant.

Interventional radiology is a new kind of minimally-invasive therapeutics that has developed on the basis of radiological imaging diagnosis.Interventional radiology is defined as a clinical subject that carries out the specific diagnosis and treatment under the guidance of medical imaging equipment and with the help of puncture needle,guide wire,catheter,etc.The interventional radiology categories include interventional diagnosis and interventional therapy.Interventional medicine is defined from the perspective of clinical application,while interventional radiology is defined from the technical characteristics of diagnosis and treatment.《of Interventional Radiology》 and the upcoming 《Journal of Interventional Medicine (English version)》 will become the professional sister journals in interventional academic field,which will provide important support for promoting the development of interventional medicine in China and for enhancing the international influence power of Chinese interventional medicine.

Objective To investigate the relationship between the cystic fluid characteristics of symptomatic sacral canal cyst and the interventional therapeutic prognosis.Methods A total of 114 patients with symptomatic sacral canal cyst were enrolled in this study.Clinically,all patients complained of discomfort at lumbosacral area.Among the 114 patients,86 were primary sacral canal cyst and 28 were recurrent sacral canal cyst.Under DSA guidance,percutaneous puncturing of the cyst was performed,2-5 ml cerebrospinal fluid (CSF) was aspirated and sent for laboratory tests.Then a small amount of nonionic contrast agent was injected into the cyst to determine whether the cyst was communicated with the subarachnoid space or not.Finally,double-needle method was used to aspirate the cyst fluid.Results Radiography showed that communication between the cyst and subarachnoid space was detected in 66 patients (group A),while no communication between the cyst and subarachnoid space was observed in 48 patients (group B).In patients with primary symptomatic sacral canal cyst,the differences in the sugar and chloride levels of CSF between group A and group B were statistically significant.In patients with recurrent symptomatic sacral canal cyst,the differences in the sugar,protein and chloride levels of CSF between group A and group B were also statistically significant.Statistically significant correlation existed between the single or multiple CSF changes and the interventional therapeutic prognosis.Conclusion Sacral canal cysts can be classified into two types:cyst-subarachnoid space communicating type and cyst-subarachnoid space non-communicating type.The characteristics of CSF in patients with primary symptomatic sacral canal cyst are different from those in patients with recurrent symptomatic sacral canal cyst.Multiple CSF changes,the increased sugar level and decreased chloride level in CSF are well correlated with the interventional therapeutic prognosis.

Clinically,heparin-induced thrombocytopenia (HIT) is an uncommon but serious disease,which is induced by the use of immune unfractionated heparin or low-molecular-weight heparin.The overall incidence of HIT is about 0.6％-5.0％.Nevertheless,in clinical practice it is profoundly dangerous,especially for patients who are receiving cardiovascular surgery or interventional therapy.At present,HIT is a hot clinical research subject.This paper aims to make a brief review about HIT pathogenesis,epidemiology,clinical evaluation and treatment,etc.