Normal Gastric Distension Size on Radiography
Learn the normal and abnormal thresholds for gastric distension on plain radiography, including clinical implications and measurement technique.
Radiography
179 entries · Page 3 of 6
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Normal Gissane Critical Angle Size on Radiography
Normal Gissane critical angle on lateral radiograph measures 120–145°, a key calcaneal landmark for detecting intra-articular fractures.
Normal Glenohumeral Joint Space Size on Radiography
Normal glenohumeral joint space measures 4–5 mm on AP radiography; values outside this range suggest arthritis, effusion, or instability.
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Normal Hallux Valgus Angle Size on Radiography
Learn the normal and abnormal hallux valgus angle on weight-bearing AP radiography, with clinical thresholds and measurement technique pearls.
Normal Harris Line Measurements: Cervical Radiography, CT, MRI
Normal Harris line measurements include basion-odontoid and basion-posterior axial line distances of less than 12 mm on lateral cervical imaging.
Normal Heel Pad Thickness on Radiography
Normal heel pad thickness on lateral radiograph measures less than 23 mm; values above this threshold suggest acromegaly or systemic pathology.
Normal Hibbs Angle Size on Radiography: Foot Reference
The normal Hibbs angle on lateral foot radiography is 130°, a key measurement for assessing forefoot and hindfoot alignment in clinical practice.
Normal Hilgenreiner's Epiphyseal Angle Size on Radiography
Normal Hilgenreiner's epiphyseal angle measures less than 60° on AP pelvis radiography, a key threshold in pediatric hip dysplasia assessment.
Normal Hip Neck Shaft Angle Size on Radiography
Normal hip neck shaft angle measures 110–140° on AP radiography, with deviations indicating coxa vara or valga and guiding orthopedic management.
Normal Hip Teardrop Distance Size on Radiography
Normal hip teardrop distance on AP radiography measures 6–11 mm, a key landmark for detecting joint effusion and femoral head migration.
Normal Humeral Angle Size on Radiography
Normal humeral angle on lateral elbow radiography measures 72–95°, a key parameter for detecting distal humeral fractures and malalignment.
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Normal Insall-Salvati Ratio Size on Radiography
Normal Insall-Salvati ratio on lateral knee radiography ranges from 0.8–1.2, with values outside this range indicating patella alta or baja.
Normal Intercarpal Joint Space Size on Radiography
Normal intercarpal joint space measures 1.5–2.0 mm on PA and lateral radiographs — a key reference for detecting carpal instability and arthritis.
Normal Intermetatarsal Angle Size on Radiography
Normal intermetatarsal angle values on AP radiography: <9° for 1st–2nd and <8° for 4th–5th metatarsals in foot alignment assessment.
Normal Interphalangeal Joint Space Size on Radiography
Normal interphalangeal joint space of the foot measures 1–2 mm on radiography; deviations indicate arthritis or injury requiring clinical correlation.
Normal Interphalangeal Joint Space Size on Radiography
Normal interphalangeal joint space measures 1–2 mm on PA and lateral radiographs; deviations indicate arthritis, injury, or effusion.
Normal Intertarsal Joint Space Size on Radiography
Normal intertarsal joint space measures 2.0–2.5 mm on radiography; deviations may indicate arthritis, ligamentous injury, or coalition.
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Normal Johnson Angle Size on Radiography: Foot & Ankle
The normal Johnson angle measures 92° on AP mortise radiography, a key reference for assessing tibiotalar alignment and ankle pathology.
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Normal Kager's Triangle Size on Radiography
Learn the normal radiographic appearance of Kager's triangle, a key fat-pad space on lateral ankle X-ray used to detect Achilles tendon pathology.
Normal Klaus Index Size on X-ray, CT & MRI
The normal Klaus Index measures >30 mm on lateral cervical imaging, helping clinicians detect basilar invagination on X-ray, CT, and MRI.
Normal Knee Joint Space Width on Radiography and MRI
Normal knee joint space width measures 3–5 mm on anteroposterior radiography, a key threshold for detecting cartilage loss and osteoarthritis.
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Normal Lateral Acetabular Inclination Angle Size Radiography
Normal lateral acetabular inclination angle on AP radiography ranges 30–50°, a key measure for assessing hip joint congruency and stability.
Normal Left Atrium Diameter Size on Radiography
Normal left atrium diameter on posteroanterior chest radiography measures less than 7 cm, a key threshold for detecting left atrial enlargement.
Normal Left Pulmonary Artery Size on Chest Radiography
Normal left pulmonary artery diameter is less than 18 mm on lateral chest radiography, a key threshold for detecting pulmonary arterial enlargement.
Normal Left Pulmonary Artery Size on Chest X-Ray
Normal left pulmonary artery diameter on chest radiography measures up to 18 mm on the lateral view, a key threshold for detecting pulmonary hypertension.
Normal Lumbosacral Angle Size on X-ray, CT & MRI
The normal lumbosacral angle measures 26–57° on lateral imaging; deviations correlate with low back pain, spondylolisthesis, and altered spinal biomechanics.
Normal Lumbosacral Disc Angle Size on X-ray, CT & MRI
The normal lumbosacral disc angle measures 10–15° on lateral imaging; deviations may indicate spondylolisthesis, disc pathology, or postural malalignment.
Normal Lunotriquetral Angle Size on Radiography
The normal lunotriquetral angle measures 14° on lateral radiography, a key reference for diagnosing carpal instability and ligamentous injury.
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Normal Main Left Bronchus Diameter on Radiography
The normal main left bronchus diameter on posteroanterior radiography measures less than 2.3 cm, a key threshold for detecting bronchial pathology.
Normal McGregor's Line Measurement: Radiography, CT, MRI
Normal McGregor's line measures less than 4.5 mm above the line, used to assess basilar invagination on lateral cervical imaging.
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