|
| June 28, 2005 |
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Pneumatization of the Inferior Turbinates: Incidence and
Radiologic Appearance -
Journal of Computer Assisted Tomography |
|
Conclusions: The
incidence of PIT was found to be 1 in 250 cases. It is suggested that
most PIT cases may be a result of articulation defects between the
maxillary process of the palatine bone and the maxillary bone. In such a
situation, the maxillary process of the palatine bone and the nasal
process of the maxillary bone, which form the medial wall of the
maxillary sinus at the IT level, can attach to the IT separately...
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Doppler ultrasound findings in healthy wrists and finger joints
before and after use of two different contrast agents
- Annals of Rheumatic Diseases |
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Conclusion: The number
of joints with colour Doppler activity in healthy volunteers was
increased by the use of contrast agents. No changes in RI were detected.
The value of contrast agents remains to be demonstrated in inflammatory
diagnostics... |
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Rheumatoid and psoriatic knee synovitis: clinical, grey scale,
and power Doppler ultrasound assessment of the response to etanercept
- Annals of Rheumatic Diseases |
|
|
Conclusion: Grey scale
and power Doppler ultrasonography are reliable measures of long term
change in rheumatoid and psoriatic KJS disease activity in response to
anti-TNF alpha treatment with etanercept... |
| June 27, 2005 |
| |
Lipid content in the musculature of the lower leg: Evaluation
with high-resolution spectroscopic imaging
- Magnetic Resonance in Medicine |
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|
A novel spectroscopic
imaging method with high spectral and spatial resolution was developed
for the specific goal of assessing muscle fat. Sensitivity to the
methylene and methyl protons of fatty acids was improved by the use of a
binomial 1 excitation pulse instead of the standard radiofrequency (RF)
pulse... |
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An Analysis of Pubis Symphysis Misalignment Using Plain Film
Radiography -
Journal of Manipulative and Physiological Therapeutics
|
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Conclusions: This study
provides evidence that misalignment of the pubic bones cannot be
reliably viewed on a standard anteroposterior lumbopelvic radiograph.
The results show the potential for missed diagnoses of clinical
significance. Additional research on pelvic joint dysfunction and
imaging problems is needed... |
|
| June 24, 2005 |
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Intramuscular Rotator Cuff Cysts: Association with Tendon Tears
on MRI and Arthroscopy -
American Journal of Roentgenology |
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Conclusion:
Intramuscular cysts are strongly associated with rotator cuff tendon
tears. Identification of such a cyst should prompt a search for a
rotator cuff tear. Findings on MR arthrography and surgery suggest that
a delaminating component of the rotator cuff tear may lead to the
development of these cysts and may explain the occasional discrepancy
between location of tears and location of cysts... |
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Pressure-Controlled Lumbar Discography in Volunteers Without Low
Back Symptoms -
Pain Medicine |
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Conclusions: Lumbar
discs in asymptomatic volunteers can be made painful, but as a rule, the
pain is mild and requires high pressures of injection. If attention is
paid to pressure of injection and intensity of response, operational
criteria can be defined that provide lumbar discography with a potential
false-positive rate of zero or less than 10%... |
|
| June 22, 2005 |
| |
Value of Magnetic Resonance Imaging for Muscle Denervation
Syndromes of the Shoulder Girdle
- Journal of Computer Assisted Tomography |
|
|
Clinical evaluation of
neuromuscular disorders typically consists of obtaining a detailed
clinical history, physical examination, and electrophysiologic
examinations. Electrodiagnostic examinations significantly aid in
distinguishing between myopathy, neuropathy, and neuromuscular
disorders... |
| June 21, 2005 |
| |
Symmetric Bony Involvement of the Lower Extremities With
Lymphoma Demonstrated on Gallium Scintigraphy
- Clinical Nuclear Medicine |
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Primary or secondary
lymphoma of the bone is uncommon. The sites of bony involvement include,
in decreasing order of frequency, the spine, long bones, pelvis, ribs,
and skull. A 66-year-old man with an atypical lineage of B-cell
non-Hodgkin lymphoma is presented. The unusual initial presentation of
the lymphoma included symmetric bony involvement of bilateral tibiae and
the distal right femur, demonstrated on gallium-67 scintigraphy...
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Multidetector Computed Tomography of Fracture-Separation of the
Distal Humeral Epiphysis
- Journal of Computer Assisted Tomography |
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A case of
fracture-separation of the distal humeral epiphysis that was diagnosed
using unenhanced multidetector computed tomography is reported.
Fracture-separation of the distal humeral epiphysis is a rare injury of
young children that is difficult to identify on routine radiographs and
is frequently misdiagnosed at the time of initial evaluation |
|
| June 16, 2005 |
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Percutaneous Sacroplasty for the Treatment of Sacral
Insufficiency Fractures
- American Journal of Roentgenology |
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The purpose of this
article is to illustrate the effectiveness and utility of percutaneous
sacroplasty in the treatment of sacral insufficiency fractures. We also
outline the technical considerations in performing the
procedure...Conclusion: Percutaneous sacroplasty is an effective
treatment for sacral insufficiency fractures. Most patients experience
significant relief within the first 48 hr... |
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Percutaneous Vertebroplasty for Compression Fracture: Analysis
of Vertebral Body Volume by CT Volumetry
- Acta Radiologica |
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Conclusion: In
percutaneous vertebroplasty for vertebral body compression fracture,
there is a positive correlation between vertebral body volume and amount
of bone cement, but improvement in VAS does not correlate with vertebral
body volume or amount of bone cement... |
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Extrapedicular Approach of Percutaneous Vertebroplasty in the
Treatment of Upper and Mid-Thoracic Vertebral Compression Fracture
- Acta Radiologica |
|
|
Conclusion: PVP of
upper and mid-thoracic spine with an extrapedicular approach is an
efficient and safe procedure for treating painful thoracic vertebral
compression fracture under a cautious patient selection and meticulous
technical procedure... |
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PET/CT Imaging of Metastatic Deposit in Vertebral Paget's
Disease -
Clinical Nuclear Medicine |
|
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Metastatic involvement
in monostotic Paget's disease is an event of uncommon occurrence. An
osseous metastasis, clinically and radiologically difficult to
differentiate from sarcomatous degeneration, is often unexpectedly
discovered during evaluation for malignant transformation of Paget's
disease. The authors present a case of recurrent nonsmall cell lung
carcinoma with PET/CT imaging instrumental in the diagnostic biopsy of a
metastatic deposit in a pagetoid lumbar vertebra... |
| |
Effect of Hydroxyapatite-Coated Tibial Components on Changes in
Bone Mineral Density of the Proximal Tibia After Uncemented Total Knee
Arthroplasty: A Prospective Randomized Study Using Dual-Energy X-Ray
Absorptiometry -
Journal of Arthroplasty |
|
|
Sixteen patients
scheduled for an uncemented total knee arthroplasty (TKA) were
randomized to receive a tibial component either with (n = 8) or without
(n = 8) hydroxyapatite (HA) coating. In 4 regions of interest,
prospective measurements of bone mineral density (BMD) using dual-energy
x-ray absorptiometry were performed in the proximal tibia... |
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Long-Term Clinical, Radiological and Histopathological Follow-Up
of a Well-Fixed McKee-Farrar Metal-on-Metal Total Hip Arthroplasty
- Journal of Arthroplasty |
|
|
We present a unique
postmortem case of a well fixed, metal-on-metal, McKee-Farrar total hip
arthroplasty implanted 30 years previously that was clinically
asymptomatic in life. Clinical and radiological examination is
supplemented by tribological examination of the bearing and
histopathological examination of the cement-bone interface...
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The Pisotriquetral Joint: Anatomic, Biomechanical, and
Radiographic Analysis -
Journal of Hand Surgery |
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Conclusions: The
pisiform ligament complex has primary and secondary stabilizers to the
PT joint. The primary stabilizers are the PH, PM, and ulnar PT
ligaments. The transverse carpal and radial PT ligaments are secondary
stabilizers. Injuries of the primary stabilizers of the PT joint may
lead to instability that predisposes to degenerative joint disease...
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| |
Radiographic stereometry for non-metal-backed acetubular cups:
3D wear estimation and related uncertainty
- Medical Image Analysis |
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The aim of this work
was to assess the 3D wear of non-metal-backed acetubular cups from two
conventional digitized radiographs. The centers of the femoral head and
the metal ring in the equatorial plane of the cup are located using 3D
pose techniques for spheres and circles from sampled points in the
images. The method used to locate these points of interest and also
estimate their covariance is fully described in previous work...
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|
| June 14, 2005 |
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Detection and Measurement of Rotator Cuff Tears with Sonography:
Analysis of Diagnostic Errors
- American Journal of Roentgenology |
|
|
Conclusion: Although
infrequent, detection errors were due to limitations inherent with the
test or misses. Limitations inherent with the patient and
misinterpretation of the findings were rare. Most measurement errors
occurred in patients with large or massive cuff tears... |
| |
Cartilage Metabolism in Osteoarthritis and the Influence of
Viscosupplementation and Steroid: a Review
- Acta Radiologica |
|
|
Osteoarthritis (O.A.)
is the most common type of articular disease. This is an idiopathic
joint disease characterized by an imbalance between synthesis and
degradation of articular cartilage and subchondral bone accompanied by
capsular fibrosis, osteophyte formation and variable grade of
inflammation of synovial membrane...This article reviews the cartilage
metabolism in O.A., discusses the pros and cons of these treatments and
provides a literature review of the studies which compare benefits and
adverse reactions of viscosupplementation vs. intraarticular steroids
with placebo treatment... |
| |
Comparison of Sagittal Computed Tomography and Plain Film
Radiography in a Scaphoid Fracture Model
- Journal of Hand Surgery |
|
|
To compare computed
tomography (CT) in the sagittal plane and plain film radiography in the
diagnosis of scaphoid fracture and displacement...Conclusions: Based on
these results both CT scans in the sagittal plane and plain films
accurately detect fractures with a high degree of interobserver and
intraobserver reliability, but they fall short in detecting displacement
greater than 1 mm... |
| |
Retrograde (Volar) Scaphoid Screw Insertion¿A Quantitative
Computed Tomographic Analysis
- Journal of Hand Surgery |
|
|
Conclusions: Screw
fixation of the scaphoid through a volar approach is hindered by the
trapezium, risks cutout through the concavity in the volar surface of
the scaphoid, and is most likely to violate the dorsoulnar aspect of the
radiocarpal articular surface of the scaphoid if the screw is too long.
A relatively radial starting point facilitates placement of the screw
tip in the center of the proximal pole and helps avoid the trapezium but
drilling or partial excision of the trapezium often may be necessary for
optimal screw placement... |
| |
Very early development of steroid-associated osteonecrosis of
femoral head in systemic lupus erythematosus: prospective study by MRI
- Lupus |
|
|
In conclusion,
pathological ONF develops very early in one-third of SLE patients who
received high dose corticosteroids and steroid pulse therapy could be a
significant risk factor. An abrupt elevation of serum total cholesterol
and / or sensitivity to steroids seem to be associated with the
pathogenesis of ONF... |
|
| June 13, 2005 |
| |
Effect of Spinal Degenerative Changes on Volumetric Bone Mineral
Density of the Central Skeleton as Measured by Quantitative Computed
Tomography -
Acta Radiologica |
|
|
Conclusion: There is no
evidence supporting that trabecular BMD measurements by QCT are
influenced by OA. Instead, degenerative changes have an effect on both
cortical and integral QCT, and on DXA at the lumbar spine and the hip.
For subjects with established |
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