Correction to: Anatomical variations in the origins of the celiac axis and the superior mesenteric artery: MDCT angiographic findings and their probable embryological mechanisms.

The original version of this article, published on 24 May 2014, unfortunately contained a referencing omission.

Anatomical variations in the origins of the celiac axis and the superior mesenteric artery: MDCT angiographic findings and their probable embryological mechanisms.

Objectives: To identify the spectrum and prevalence of anatomical variations in the origin of the celiac axis (CA), the superior mesenteric artery (SMA) and their major branches by using multidetector computed tomographic (MDCT) angiography.

Methods: A retrospective evaluation was carried out on 1,500 abdominal MDCT angiography images. The aortic origins of the CA, the SMA and their major branch patterns were investigated.

The role of positron emission tomography imaging of beta-amyloid in patients with Alzheimer's disease.

One of the hallmark pathologies of Alzheimer's disease (AD) is amyloid plaque deposition in the brain. Although the advent of new therapeutic strategies aimed at reducing beta-amyloid burden in the brain is to potentially delay cognitive loss, improved methods for amyloid visualization have become more imperative. Studies so far have shown that positron emission tomography (PET) has produced the greatest strides toward accomplishing this ambitious goal.

[Role and significance of pelvic four-contrast defecography in the diagnosis of outlet obstructive constipation].

Objective: To study the changes in pelvic floor morphology and relationships of the pelvic organs in patients with outlet obstructive constipation (OOC).

Methods: Fifty-nine OOC patients and 12 healthy volunteers were examined by simultaneous pelvic four-contrast defecography, including pelvicography, vaginal opacification, voiding cystography and defecography. The levels of perineum, peritoneum and bladder, and anorectal angle were measured and recorded.

[Image analysis of puborectalis syndrome and its clinical significance].

Objective: To discuss the clinical value and application range of defecography, CT and MRI in diagnosis of puborectalis syndrome (PRS).

Methods: The clinical data of 83 PRS patients, including defecography, CT and MRI scanning in pelvic floor resting and defecation at maximum exertion, measurement of anorectal angle (ARA), length and depth of ARA impression and the thickness of the puborectalis muscle, were collected, and compared with those of 56 normal persons.

Results: For normal persons, ARA at maximum exertion was more significantly increased than that at resting.

[Comparative study between dynamic MRI and pelvic organography in diagnosis of pelvic floor disorders].

Objective: To evaluate the clinical value of simultaneously combined pelvic floor dynamic MRI and pelvic organography in diagnosing female pelvic floor disorders and search for the best imaging model for diagnosing pelvic floor disorders.

Methods: Thirty women with pelvic floor disorders received pelvic floor dynamic MRI and simultaneously combined pelvic organography including cystourethrography, peritoneography, vaginography and defecography. Clinical diagnostic value was compared between this two methods.

Role of pelvicography and colpocystodefecography in diagnosis of outlet obstructive constipation.

Aims: The aim was to research the changes in pelvic floor morphology and corresponding visceras in patients with outlet obstructive constipation (OOC).

Patients And Methods: Thirty-eight patients with OOC and 12 healthy volunteers were enrolled in this study. With simultaneous pelvicography and colpocystodefecography (PCCD), including pelvicography, vaginal opacification, voiding cystography and defecography, pelvic floor morphology was observed and the anorectal angle, the level of the perineum, peritoneum and bladder were measured.

[Effect of vascular endothelial growth factor in fracture healing].

Objective: To observe the effect of vascular endothelial growth factor (VEGF) in fracture healing and to investigate the influence of VEGF and VEGF antibody in fracture healing.

Methods: One hundred and five rabbits were used to make fracture model in the left radius and randomly divided into control group, VEGF group and VEGF antibody group. VEGF and VEGF antibody were used in the VEGF group and VEGF antibody group respectively, then the blood flow of the fracture ends was measured by single photon emission computed tomography (SPECT) 8, 24, 72 hours, 1, 3, 5 and 8 weeks after fracture, the X-ray films of the fracture sites were taken after 1, 3, 5 and 8 weeks to observe the fracture healing.