A new method of conclusively creating and transferring the emergence profile on single tooth immediate implant restorations: the E-merge protocol.

Purpose: The purpose of this article is to propose a new protocol for the accurate transfer of the peri-implant soft tissue emergence profile (EP) using a customized healing abutment or a provisional restoration whose shape is integrated into prosthetic design software.

Report: The EP of the future restoration is created extraorally with an ideally shaped customized healing abutment or a provisional crown. Before insertion, the latter is screwed into a repositionable analog placed on a specially designed device and scanned with an intraoral scanner (IOS).

[Assisted teleconsultation : a new medical practice with many stakes].

Assisted teleconsultation, one of the components of telemedicine, is a form of medical practice set to further develop in the coming years. Interprofessional relationships are being adapted, and the triad patient-care provider-physician is experiencing new challenges. In this article we focus on the competencies and skills required and suggest some clinical practice guidelines for this new form of medical practice based on the pilot phase of our project.

Using three-dimensional rotational angiography for sizing of covered stents.

Objective: The purpose of our study was to determine the value of three-dimensional (3D) rotational angiography in the assessment of patients to be treated with covered stents for peripheral arterial aneurysms.

Conclusion: Our preliminary experience suggests that 3D rotational angiography appears to be a valid tool in the pre- and perprocedural assessment of patients treated endovascularly for arterial aneurysms.

The Hemashield Woven prosthesis in the thoracic aorta: a prospective computer tomography follow-up study.

Background: Dacron prostheses in humans have been documented to present long-term fiber alterations, that may account for late graft dilatation. Late dilatation has been documented mainly in knitted prostheses, implanted in the abdominal and thoracic aorta. Dilatation of the collagen-impregnated Hemashield Woven prosthesis has not been studied prospectively in the thoracic aorta.

Effect of dose levels on the diagnostic performance of a selenium-based digital chest system.

Rationale And Objectives: To evaluate the effect of dose reduction on diagnostic performance by using a digital chest imaging system in which amorphous selenium serves as the x-ray detector.

Methods: Two hundred forty-seven patients were examined with the selenium system. Three sets of images were made in each patient: one set with a standard x-ray dose, one set with 55% of the standard dose, and one set with 35% of the standard dose.

Preoperative and postoperative assessment of laparoscopic inguinal hernia repair by dynamic MRI.

Rationale And Objectives: To determine the value of dynamic MRI for seroma detection, hernia recurrence, and mesh placement in patients after laparoscopic inguinal hernia repair.

Methods: Thirteen inguinal hernias in 10 consecutive patients were evaluated before and after surgery by using an MRI protocol consisting of coronal T1-weighted (fast field echo) and T2-weighted (turbo spin-echo) images and two sequences obtained during straining (turbo field echo gradient technique). All patients underwent a transabdominal preperitoneal laparoscopic inguinal hernia repair.

Radiological anatomy of the groin region.

The purpose of this paper is to give an overview of the anatomy of the inguinal region, and to discuss the value of various imaging modalities in the diagnosis of groin hernias. After description of the gross anatomy of the groin, attention is focused on the anatomic features of conventional herniography, US, CT, and MRI. Advantages, disadvantages, and accuracy of each technique is discussed briefly.

Detection of groin hernia with physical examination, ultrasound, and MRI compared with laparoscopic findings.

Objective: To determine the diagnostic accuracy of physical examination, ultrasound, and dynamic MRI in patients with inguinal hernia.

Methods: In 41 patients with clinically evident herniations, 82 groins were evaluated using a standard ultrasound and MRI protocol, the latter including T1- and T2-weighted sequences as well as two dynamic sequences. All ultrasound examinations and MRI scans were reviewed without knowledge of clinical findings.

Gelseal versus Gelweave dacron prosthetic grafts in the descending thoracic aorta: a two-year computed tomography scan follow-up study.

Background: In the abdominal aorta, the use of knitted rather than woven dacron prostheses has shown an early and slow late dilation. The dilation of woven versus knitted dacron prostheses in the thoracic aortic position has not yet been investigated.

Method: From 1992, 25 patients entered a prospective study: 13 Gelweave and 12 Gelseal prostheses (diameter 18-26 mm) were implanted in the descending thoracic aorta.

Masses and pain in the groin: a review of imaging findings.

The inguinofemoral region is a crossroads of numerous vascular, nervous and muscular structures. As even the most astute clinician can have difficulty in correctly diagnosing the cause of complaints or a mass in the groin and thigh region, radiological investigation is frequently warranted. For the radiologist involved, knowledge of the anatomy and specific pathology of the groin is essential.

Groin hernia: can dynamic magnetic resonance imaging be of help?

This technical note describes the use of dynamic MRI in the diagnosis of groin herniations. A review of the anatomy of the groin is presented and 4 representative cases are described. This paper indicates that dynamic MRI can be used to confirm the diagnosis in patients with clinically evident groin herniations.

Radiologic prevalence of advanced lateral C1-C2 osteoarthritis.

Study Design: The lateral C1-C2 (atlantoaxial) joints were evaluated retrospectively in 355 patients referred for radiographs of the paranasal sinuses.

Objectives: To determine the radiologic prevalence of advanced lateral atlantoaxial osteoarthritis.

Summary Of Background Data: Previous studies have shown a relation between atlantoaxial osteoarthritis and referred pain in the suboccipital region.

Dynamic magnetic resonance imaging in the diagnosis of groin hernia.

Rationale And Objectives: The authors determine the feasibility of dynamic magnetic resonance (MR) imaging in the diagnosis of groin hernia.

Methods: Ten volunteers and 10 patients with clinically evident and surgically proven herniations were evaluated using T1-, and T2-weighted sequences and two dynamic sequences. The visibility of anatomic structures that are crucial for the assessment and the differentiation of inguinofemoral herniations was evaluated.

Digital chest imaging using a selenium detector. The impact of hard copy size on observer performance: a computed tomography-controlled study.

Rationale And Objectives: The authors compare radiologist detection performance under clinical conditions for assessment of the effect of size reduction on the diagnostic performance of digital chest images obtained with a selenium detector.

Methods: Sixty-five patients were examined with the digital system. The images were acquired without an antiscatter grid.

MRI of atlanto-odontoid osteoarthritis.

We present the MRI appearances of advanced degenerative changes at the atlanto-odontoid (AO) joint. Changes including obliteration of the joint space, subchondral sclerosis and osteophytosis were clearly depicted on fast gradient-echo T1-weighted MRI images. Recognition of these changes may be helpful in the diagnosis in patients with suboccipital pain.

Evaluation of femoropopliteal arteries with duplex ultrasound after angioplasty. Can we predict results at one year?

Objectives: To determine if Duplex ultrasound (DUS) 1 day after percutaneous transluminal angioplasty (PTA) is prognostic for haemodynamic and clinical results at 1 year.

Design: Prospective study.

Patients And Methods: Thirty-four femoropopliteal artery segments were treated with PTA.

Chest imaging with a selenium detector versus conventional film radiography: a CT-controlled study.

Purpose: To compare radiologist detection performance under clinical conditions for assessment of conventional radiographs and digital chest images obtained with a selenium detector.

Materials And Methods: One hundred four patients were examined with the digital and conventional systems under near identical technical conditions. The digital images were acquired without an antiscatter grid.

Effects of dose reduction on digital chest imaging using a selenium detector: a study of detecting simulated diffuse interstitial pulmonary disease.

Objective: The purpose of this study was to evaluate the effect of dose reduction on the diagnostic performance of a new digital chest imaging system in which amorphous selenium is used as the X-ray detector. Diagnostic performance was assessed for the detection of simulated diffuse interstitial pulmonary disease (DIPD).

Materials And Methods: DIPD was simulated by superimposing plastic sheets that contained small radiopaque objects (birdseed) on an anthropomorphic chest phantom.

Ciprofibrate versus gemfibrozil in the treatment of primary hyperlipidaemia.

The efficacy and short-term safety of ciprofibrate and gemfibrozil were compared in a 12-week, double-blind, randomised study. One-hundred-and-ten primary, type II hyperlipidaemic patients were randomised to receive either ciprofibrate, 100 mg/day once daily, or gemfibrozil, 1200 mg/day twice daily. Treatment efficacy was measured by complete lipid and lipoprotein profiles and by plasma fibrinogen levels.

Case report: bronchial to coronary artery anastomosis--a potential hazard in bronchial artery embolization.

Bronchial artery embolization is a well-established treatment for patients with haemoptysis. Communications between coronary and bronchial vessels have been seen on coronary angiography. This report describes a case of a bronchial to coronary artery anastomosis diagnosed prior to embolization in a patient with haemoptysis.

Iliac artery stenoses after percutaneous transluminal angioplasty: follow-up with duplex ultrasonography.

Purpose: To assess iliac artery stenosis before and up to 1 year after percutaneous transluminal angioplasty (PTA) with duplex ultrasound (DUS) to determine the incidence of residual and recurrent stenoses and correlate these findings to clinical outcome.

Patients And Methods: Sixty-one patients with 70 iliac artery segments treated with PTA were examined. The peak systolic velocity (PSV) ratio (PSV ratio = PSV in stenosis divided by PSV proximal or distal to stenosis) was determined by DUS before PTA and 1 day, 3 months and 1 year after PTA.

Digital chest imaging with a selenium detector: comparison with conventional radiography for visualization of specific anatomic regions of the chest.

Objective: The purpose of this study was to compare a new digital chest radiography system that uses amorphous selenium as the X-ray detector with conventional radiography for the visualization of various anatomic regions of the chest as a first phase of testing image quality.

Materials And Methods: Six observers analyzed pairs of posteroanterior chest radiographs of 40 patients. One radiograph in each pair was obtained with a conventional chest film changer, and the other was obtained with the digital selenium chest radiography system.