The Diagnostic Value of Displacement of the Fat Stripe in Fracture of the Scaphoid Bone

Soft tissue abnormalities on radiological examination can be useful in evaluating injury to various regions. In a retrospective study of X-ray pictures of 125 patients with injury to the wrist, it was possible to demonstrate an abnormal scaphoid fat stripe (SFS) in seventy-three out of seventy-eight cases with fracture of the scaphoid bone, compared to ten out of forty-seven cases without fracture.

Download Full-text

Can the examination time in CT and conventional x-ray be reduced in an emergency department with integrated radiology unit? A retrospective study

Acute Medicine Journal ◽

10.52964/amja.0793 ◽

2020 ◽

Vol 19 (1) ◽

pp. 21-25

Author(s):

Kristian Farsoe Blessing ◽

◽

Mikkel Brabrand ◽

Ole Graumann ◽

Andreas Foldrup ◽

...

Keyword(s):

Emergency Department ◽

Information System ◽

Retrospective Study ◽

Radiology Information System ◽

Radiological Examination ◽

X Ray ◽

Examination Time ◽

Before And After ◽

Chest Examination ◽

Ct Head

Quick radiological diagnosis is often needed in order to allow the clinicians to make a diagnosis. The purpose of this study was to measure examination time for radiology procedures before and after physical integration of a radiology unit in the ED. We retrospectively acquired data from the radiology information system and compared time from referral to end of radiological examination before and after physical integration of the radiology unit in the ED for 19,897 X-ray and 6,940 CT examinations. After integration examination time for X-ray examinations was reduced by 5 to 14 minutes (p<0.001). For CT head and chest examination time was reduced by 7 to 15 minutes (p<0.003) while examination time for CT abdomen was prolonged by 4 minutes (p=0.78).

Download Full-text

The Anatomical Fat Pad and the Radiological “Scaphoid Fat Stripe”

Journal of Hand Surgery (European Volume) ◽

10.1016/0266-7681_89_90095-8 ◽

1989 ◽

Vol 14 (3) ◽

pp. 326-328

Author(s):

M. CORFITSEN ◽

S. E. CHRISTENSEN ◽

R. CETTI

Keyword(s):

Soft Tissue ◽

Tendon Sheath ◽

Diagnostic Value ◽

Scaphoid Bone ◽

X Rays ◽

Fat Pad ◽

Abductor Pollicis Longus ◽

Anatomical Basis ◽

Radiological Changes ◽

Diagnostic Sensitivity And Specificity

The diagnostic value of the “scaphoid fat stripe” seen on X-rays in association with fractures of the scaphoid bone in the wrist is reviewed. The anatomical basis for these soft tissue radiological changes was investigated by dissection of the anatomical snuff-box and by injection studies. It is concluded that the snuffbox fat is part of a major fat-pad located in a recess radio-dorsally on the wrist. However the radiological structure named the “scaphoid fat stripe” was found to be the highly radiolucent common tendon sheath of the extensor pollicis brevis and the abductor pollicis longus muscles. Limitations in diagnostic sensitivity and specificity are discussed.

Download Full-text

Der Einfluß der Inaktivitätsosteoporose auf die szintigraphische Darstellung knöcherner Verletzungen im Bereich des Handgelenks

Nuklearmedizin ◽

10.1055/s-0038-1629482 ◽

1989 ◽

Vol 28 (04) ◽

pp. 124-128 ◽

Cited By ~ 2

Author(s):

J. Spitz ◽

N. Clemenz ◽

K. Tittel ◽

H. Weigand

Keyword(s):

Bone Scintigraphy ◽

Plaster Cast ◽

Scaphoid Bone ◽

X Ray ◽

The Third ◽

High Level ◽

Clinical Conditions ◽

Rate Of Accumulation

In addition to its established oncological indications the sensitivity of bone scintigraphy is of steadily increasing significance in traumatology. Inactivity- induced osteoporosis plays a major role during the immobilization period in the plaster cast. In the region of the joints remodelling intensity may reach such a high level that the non-injured bone shows a higher rate of accumulation than the fracture. This process already begins between the third and fourth week of immobilization. The highest uptake is found after fracture of the scaphoid bone at the end of twelve weeks of immobilization. Control scintigraphies at intervals of several days are indicated to differentiate between various clinical conditions (pseudoarthrosis, activated osteoarthrosis, algodystrophy in case of doubtful x-ray results).

Download Full-text

Soft-tissue changes after Class II malocclusion treatment using the Sander bite-jumping appliance: a retrospective study

Minerva Stomatologica ◽

10.23736/s0026-4970.19.04197-9 ◽

2019 ◽

Vol 68 (3) ◽

Cited By ~ 1

Author(s):

Michele Tepedino ◽

Maria V. Della Noce ◽

Domenico Ciavarella ◽

Patrizia Gallenzi ◽

Massimo Cordaro ◽

...

Keyword(s):

Retrospective Study ◽

Soft Tissue ◽

Class Ii ◽

Class Ii Malocclusion ◽

Tissue Changes ◽

Soft Tissue Changes

Download Full-text

Coronal STIR sequence, a simple adjustment to routine MRI protocol for extra-spinal sciatica and sciatica-like symptoms

Egyptian Journal of Radiology and Nuclear Medicine ◽

10.1186/s43055-019-0096-6 ◽

2019 ◽

Vol 50 (1) ◽

Author(s):

Rania Zeitoun ◽

Mohammed Saleh Ali Mohieddin

Keyword(s):

Young Adults ◽

Soft Tissue ◽

Mr Imaging ◽

Age Groups ◽

Field Of View ◽

Mri Protocol ◽

Stir Sequence ◽

Tissue Abnormalities ◽

Additional Value ◽

Bone Abnormalities

Abstract Background The value of adding coronal STIR images to MR imaging of sciatica aiming to detect extra-spinal abnormalities. Results Additional coronal STIR images detected extra-spinal abnormalities in 20% of the patients, thereby downgraded the normal studies from 21 to 13%. The extra-spinal abnormalities included bone abnormalities (36.4%), soft tissue abnormalities (4.5%), neurological abnormalities (2.3%), gynecological abnormalities (50%), and miscellaneous (6.8%). In 6.9% of patients, the extra-spinal abnormalities explained the patients’ pain and influenced their management. Extra-spinal causes of pain significantly correlated to positive trauma and neoplasm history, normal routine protocol images, and absent nerve root impingement. Extra-spinal abnormalities were more prevalent in age groups (20–39 years). Conclusion Coronal STIR images (field of view: mid abdomen to the lesser trochanters) identify extra-spinal abnormalities that maybe overlooked on routine MRI protocol. It is of additional value in young adults, trauma, neoplasm, and negative routine images.

Download Full-text

Soft tissue abnormalities in Wassel Type VI radial polydactyly: a detailed anatomical study

Journal of Hand Surgery (European Volume) ◽

10.1177/1753193421990212 ◽

2021 ◽

Vol 46 (4) ◽

pp. 352-359

Author(s):

Susumu Saito ◽

Itaru Tsuge ◽

Hiroki Yamanaka ◽

Naoki Morimoto

Keyword(s):

Soft Tissue ◽

Three Dimensional ◽

Anatomical Study ◽

Metacarpophalangeal Joint ◽

Abductor Pollicis Brevis ◽

Level Of Evidence ◽

Thenar Muscle ◽

Pulley System ◽

Radial Deviation ◽

Tissue Abnormalities

Wassel VI radial polydactyly is associated with metacarpal adduction and radial deviation of the metacarpophalangeal joint of the ulnar duplicate. The soft tissue abnormalities responsible for these deformities were characterized using preoperative multi-planar three-dimensional ultrasound and intraoperative observation in four patients. In all patients, the abductor pollicis brevis and superficial head of the flexor pollicis brevis inserted into the radial first metacarpal, whereas the adductor pollicis and deep head of the flexor pollicis brevis inserted into the ulnar thumb. Aberrant location of the flexor pollicis longus and absence of the A1 pulley system was associated with severe radial deviation. An additional superficial thenar muscle along the ulnar metacarpal was associated with minimal metacarpal adduction. Uneven forces on the ulnar duplicate could be associated with these characteristic deformities and joint instability. Knowledge of these abnormalities allows better planning of surgery and further insight into this rare radial polydactyly configuration. Level of evidence: II

Download Full-text

SOFT TISSUE CAM IMPINGEMENT IN ADOLESCENTS: MRI REVEALS IMPINGEMENT LESIONS UNDERAPPRECIATED ON X-RAY

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967121s00063 ◽

2021 ◽

Vol 9 (7_suppl3) ◽

pp. 2325967121S0006

Author(s):

Benjamin L. Johnson ◽

Hamza Alizai ◽

Montanez Ben ◽

K. John Wagner ◽

Tyler Youngman ◽

...

Keyword(s):

Soft Tissue ◽

Femoral Head ◽

Plain Radiograph ◽

Alpha Angle ◽

Duration Of Symptoms ◽

X Ray ◽

Insidious Onset ◽

Adolescent Patients ◽

Cam Impingement ◽

Soft Impingement

Background: The presence of femoroacetabular impingement (FAI) in adolescents has been established. However, the existence of a non-ossified CAM lesion in adolescent femoracetabular impingement (FAI) is not well described. Hypthesis/Purpose: The purpose of this study is to evaluate the presence of a non-ossified or soft CAM lesion in adolescent patients with FAI. Methods: A review of a prospective cohort of patients with symptomatic FAI in an institutional registry was performed. Subjects were included if they had an MRI and lateral x-ray of the hip (45o Dunn, Cross Table, or frog) at a baseline visit. On MRI, evaluation of the anterolateral femoral head was evaluated using radial, coronal, sagittal, or axial oblique sequences. When a soft CAM lesion was identified (all found between 2-5 o’clock), an alpha angle was performed on MRI and plain radiograph. The cohort of soft CAM lesions was reviewed and differences between radiographic and MRI alpha angles were assessed using a paired T-Test. Results: Thirty-one (9.3%) of 332 hips (mean age 16.4 yrs, range 13.66-19.59 yrs; 83.9% F) were identified with a soft impinging lesion at the femoral head-neck junction on MRI. The most common primary sport was track & field (4), the average duration of symptoms was 92.4 weeks and a majority with insidious onset (77.4%). The average alpha angle on MRI was greater than on x-ray [63.53 ± 7.94o vs 51.25 ± 7.92o; p<0.05]. All subjects with soft CAM lesions demonstrated soft tissue consistent with extension of the physis (n=1),thickening of the peri-chondral ring (n=22), or thickening of the periosteum (n=8). Twenty-two of these patients (71%) with soft impingement underwent hip preservation surgery (n=13 labral repairs) with improvements in clinical outcome. Conclusion: In adolescent patients with symptomatic hip impingement, MRI may be useful to identify soft CAM lesions (non-ossified) that are under-represented on x-ray.

Download Full-text

Visualization Ability of Phase-Contrast Synchrotron-Based X-Ray Imaging Using an X-Ray Interferometer in Soft Tissue Tumors

Technology in Cancer Research & Treatment ◽

10.1177/15330338211010121 ◽

2021 ◽

Vol 20 ◽

pp. 153303382110101

Author(s):

Thet-Thet Lwin ◽

Akio Yoneyama ◽

Hiroko Maruyama ◽

Tohoru Takeda

Keyword(s):

Computed Tomography ◽

Soft Tissue ◽

Spatial Resolution ◽

Phase Contrast ◽

Soft Tissue Tumors ◽

X Ray ◽

3 Dimensional ◽

Computed Tomography Images ◽

X Ray Imaging ◽

X Ray Computed

Phase-contrast synchrotron-based X-ray imaging using an X-ray interferometer provides high sensitivity and high spatial resolution, and it has the ability to depict the fine morphological structures of biological soft tissues, including tumors. In this study, we quantitatively compared phase-contrast synchrotron-based X-ray computed tomography images and images of histopathological hematoxylin-eosin-stained sections of spontaneously occurring rat testicular tumors that contained different types of cells. The absolute densities measured on the phase-contrast synchrotron-based X-ray computed tomography images correlated well with the densities of the nuclear chromatin in the histological images, thereby demonstrating the ability of phase-contrast synchrotron-based X-ray imaging using an X-ray interferometer to reliably identify the characteristics of cancer cells within solid soft tissue tumors. In addition, 3-dimensional synchrotron-based phase-contrast X-ray computed tomography enables screening for different structures within tumors, such as solid, cystic, and fibrous tissues, and blood clots, from any direction and with a spatial resolution down to 26 μm. Thus, phase-contrast synchrotron-based X-ray imaging using an X-ray interferometer shows potential for being useful in preclinical cancer research by providing the ability to depict the characteristics of tumor cells and by offering 3-dimensional information capabilities.

Download Full-text