Topical Review

نویسنده

  • M M Doyley
چکیده

Elastography is emerging as an imaging modality that can distinguish normal versus diseased tissues via their biomechanical properties. This paper reviews current approaches to elastography in three areas—quasi-static, harmonic and transient—and describes inversion schemes for each elastographic imaging approach. Approaches include first-order approximation methods; direct and iterative inversion schemes for linear elastic; isotropic materials and advanced reconstruction methods for recovering parameters that characterize complex mechanical behavior. The paper’s objective is to document efforts to develop elastography within the framework of solving an inverse problem, so that elastography may provide reliable estimates of shear modulus and other mechanical parameters. We discuss issues that must be addressed if modelbased elastography is to become the prevailing approach to quasi-static, harmonic and transient elastography: (1) developing practical techniques to transform the ill-posed problem with a well-posed one; (2) devising better forward models to capture the complex mechanical behavior of soft tissues and (3) developing better test procedures to evaluate the performance of modulus elastograms. (Some figures may appear in colour only in the online journal)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nanoemulsions: colloidal topical delivery systems for antiacne agents- A Mini-Review

One of the common chronic inflammatory skin diseases is Acne Vulgaris that affects up to 80% of a teen-age population. The progress of acne lesions is due to colonization of Propionibacterium acnes (P .acnes) in hair follicles. Treatment of acne includes topical or systemic therapy or combination therapy, with a tendency to perform topical therapy in mild to moderate acne. Nanoemulsions, small ...

متن کامل

Topical Treatments for Uremic Pruritus in Hemodialysis Patients: A Systematic Review

Background & Objective: Pruritus is a common disruptive symptom in hemodialysis patients and those with chronic renal failure. Although pharmacological treatments could partially reduce pruritus in hemodialysis patients, the definitive treatment remains challenging in these patients. Several studies have been published in this regard, while no reviews have been focused on these articles. The pr...

متن کامل

Adapalene in treatment of Acne Vulgaris: A review article

The inefficiency of current therapies of acne vulgaris, side effects and teratogenicity of topical and oral retinoids resulted in the need to find out new drugs. Adapalene 0.1% gel or solution with retinoid properties is effective in treatment of acne, and improves both inflammatory and non-inflammatory lesions. The anti-inflammatory properties of adapalene and its specific tendency to bi...

متن کامل

Pharmaceutical Nanoemulsions and Their Potential Topical and Transdermal Applications

      Topical and transdermal drug delivery systems are noninvasive and can be self-administered with the minimization of side-effects, have received increased attention during the past few years. Nanoemulsions, emulsions sized between 20-200 nm with narrow distributions, offer several advantages for topical and transdermal delivery of pharmaceutical agents including controlled droplet size, th...

متن کامل

Glaucoma Surgery in Pregnancy: A Case Series and Literature Review

AbstractGlaucoma management in pregnant patients is a real challenge, especially when the glaucoma is not controlled with medications. We report the results of 6 incisional glaucoma surgeries for the management of medically uncontrolled glaucoma patients during pregnancy. This retrospective, case series was conducted on the 6 eyes of 3pregnant patients with uncontrolled glaucoma using maximum t...

متن کامل

A review on West African Ebola epidemic dynamics models

Background and aims: The world is threatened by disease outbreak that reaches a public health emergency of international concern, studies to inform public and agencies for effective containment strategy are necessary. Several studies provided vital information of the dynamics and control of Ebola epidemic outbreak in West Africa. Methodologies and techniques in those researches...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012